int A = 13, B = 12, C = A2,D = A3,E = A4,F = A0,G = A1;
int B_DO = 6, B_RE = 7, B_MI= 8,B_PA = 9,B_SOL = 10,B_LA = 11;
int BSTART = 3;

int switchUpPin = 5;
int switchDownPin = 4;
int counter = 0;
int buttonUpState = 0;
int lastButtonUpState = 0;
int buttonDownState = 0;
int lastButtonDownState = 0;

void setup() 
{
  Serial.begin(9600);
  pinMode(A, OUTPUT);
  pinMode(B, OUTPUT);
  pinMode(C, OUTPUT);
  pinMode(D, OUTPUT);
  pinMode(E, OUTPUT);
  pinMode(F, OUTPUT);
  pinMode(G, OUTPUT);
  pinMode(B_DO,INPUT_PULLUP);
  pinMode(B_RE,INPUT_PULLUP);
  pinMode(B_MI,INPUT_PULLUP);
  pinMode(B_PA,INPUT_PULLUP);
  pinMode(B_SOL,INPUT_PULLUP);
  pinMode(B_LA,INPUT_PULLUP);
  pinMode(BSTART,INPUT_PULLUP);
}

void loop() 
{
  if (digitalRead(B_DO)==0)   {tone (2,523,10); delay(40);}  //1 DO
  if (digitalRead(B_RE)==0)   {tone (2,587,10); delay(40);}  //2 RE 
  if (digitalRead(B_MI)==0)   {tone (2,659,10); delay(40);}  //3 MI
  if (digitalRead(B_PA)==0)   {tone (2,698,10); delay(40);}  //4 PA
  if (digitalRead(B_SOL)==0)  {tone (2,784,10); delay(40);}  //5 SOL
  if (digitalRead(B_LA)==0)   {tone (2,880,10); delay(40);}  //6 LA

 if (digitalRead(BSTART)==0) {
   
    int val1 = counter;

    switch (val1) {
//===============================================================================  
    case 1: //LAGU 1
    tone (2,698,600); delay(600);   //4
    tone (2,659,350); delay(350);   //3
    tone (2,587,330); delay(400);   //2
    tone (2,587,320); delay(400);   //2
    tone (2,587,310); delay(400);   //2
    tone (2,587,325); delay(400);   //2

    tone (2,698,325); delay(325);   //4
    tone (2,784,300); delay(300);   //5
    tone (2,698,350); delay(350);   //4
    tone (2,523,325); delay(400);   //1
    tone (2,523,325); delay(400);   //1
    tone (2,523,325); delay(400);   //1
    tone (2,523,325); delay(400);   //1

    tone (2,698,325); delay(350);   //4
    tone (2,659,275); delay(300);   //3
    tone (2,587,275); delay(375);   //2
    tone (2,587,325); delay(400);   //2
    tone (2,587,325); delay(400);   //2
    tone (2,587,325); delay(400);   //2

    tone (2,698,325); delay(325);   //4
    tone (2,784,300); delay(300);   //5
    tone (2,698,350); delay(425);   //4
    tone (2,523,325); delay(400);   //1
    tone (2,523,325); delay(400);   //1
    tone (2,523,325); delay(400);   //1
    tone (2,523,325); delay(400);   //1
    break;

//===============================================================================
    case 2: //LAGU 2
    tone (2,659,250); delay(250);   //3
    tone (2,698,250); delay(250);   //4
    tone (2,659,250); delay(250);   //3
    tone (2,587,250); delay(250);   //2  
    tone (2,659,250); delay(400);   //3
    
    tone (2,689,250); delay(250);   //4
    tone (2,784,250); delay(250);   //5
    tone (2,880,400); delay(400);   //6
    tone (2,784,300); delay(300);   //5
    tone (2,698,250); delay(250);   //4
    tone (2,659,300); delay(300);   //3
    tone (2,587,250); delay(250);   //2
    tone (2,659,250); delay(350);   //3

    tone (2,689,250); delay(350);   //4
    tone (2,784,250); delay(250);   //5
    tone (2,880,400); delay(400);   //6
    tone (2,784,300); delay(300);   //5
    tone (2,698,250); delay(250);   //4
    tone (2,659,300); delay(300);   //3
    tone (2,587,250); delay(250);   //2

    tone (2,698,180); delay(240);   //4
    tone (2,698,180); delay(260);   //4
    tone (2,659,180); delay(240);   //3
    tone (2,659,180); delay(260);   //3
    tone (2,659,180); delay(240);   //3
    tone (2,587,180); delay(240);   //2
    tone (2,587,160); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,698,180); delay(220);   //4
    tone (2,698,180); delay(260);   //4
    tone (2,659,180); delay(240);   //3
    tone (2,659,180); delay(260);   //3
    tone (2,659,500); delay(500);   //3
    break;
    
//===============================================================================    
    case 3: //LAGU 3
    tone (2,587,200); delay(500);   //2

    tone (2,698,200); delay(400);   //4
    tone (2,587,200); delay(400);   //2
    tone (2,587,200); delay(500);   //2
    
    tone (2,698,200); delay(400);   //4
    tone (2,587,200); delay(400);   //2
    tone (2,587,200); delay(500);   //2

    tone (2,698,200); delay(400);   //4

    tone (2,587,200); delay(200);   //24
    tone (2,587,200); delay(200);   //23
    tone (2,659,200); delay(200);   //23
    tone (2,659,200); delay(200);   //31
    tone (2,523,200); delay(200);   //31

    tone (2,587,200); delay(500);   //2

    tone (2,698,200); delay(400);   //4
    tone (2,587,200); delay(400);   //2
    tone (2,587,200); delay(500);   //2
    
    tone (2,698,200); delay(400);   //4
    tone (2,587,200); delay(400);   //2
    tone (2,587,200); delay(500);   //2

    tone (2,698,200); delay(400);   //4
    tone (2,587,200); delay(400);   //2
    tone (2,587,200); delay(200);   //2
    tone (2,698,200); delay(200);   //4
    tone (2,587,200); delay(200);   //24
    tone (2,587,200); delay(200);   //23
    tone (2,659,200); delay(200);   //23
    tone (2,659,200); delay(200);   //31
    tone (2,523,200); delay(200);   //31
    break;
//===============================================================================

    case 4: //LAGU 4
    tone (2,587,170); delay(220);   //31
    tone (2,698,170); delay(220);   //31
    tone (2,587,170); delay(220);   //42
    tone (2,587,170); delay(220);   //53
    tone (2,698,170); delay(220);   //42
    tone (2,587,170); delay(220);   //31
    tone (2,587,170); delay(220);   //3
    tone (2,698,170); delay(220);   //32
    break;
 //===============================================================================

    case 5: //LAGU 5
    tone (2,659,200); delay(260);   //3
    tone (2,587,200); delay(250);   //2
    tone (2,698,200); delay(250);   //4
    tone (2,587,200); delay(250);   //2
    tone (2,659,200); delay(250);   //3
    tone (2,523,200); delay(250);   //1
    tone (2,587,200); delay(250);   //2

    tone (2,523,200); delay(250);   //1
    tone (2,659,200); delay(250);   //3
    tone (2,587,200); delay(250);   //2
    tone (2,698,200); delay(250);   //4
    tone (2,587,200); delay(250);   //2
    tone (2,659,200); delay(250);   //3

    tone (2,523,200); delay(250);   //1
    tone (2,587,200); delay(250);   //2
    tone (2,659,200); delay(250);   //3
    tone (2,698,200); delay(250);   //4
    tone (2,880,250); delay(250);   //6
    tone (2,784,150); delay(150);   //5
    tone (2,784,150); delay(150);   //5
    tone (2,880,250); delay(250);   //6
    tone (2,784,150); delay(150);   //5
    tone (2,784,150); delay(150);   //5
    tone (2,880,250); delay(250);   //6
    tone (2,784,150); delay(150);   //5
    tone (2,784,150); delay(150);   //5
    tone (2,880,250); delay(250);   //6
    tone (2,784,150); delay(150);   //5
    tone (2,784,150); delay(150);   //5
    tone (2,880,250); delay(250);   //6
    tone (2,784,150); delay(150);   //5
    tone (2,784,150); delay(150);   //5
    tone (2,698,200); delay(250);   //4
    tone (2,659,200); delay(250);   //3

    tone (2,523,200); delay(250);   //1
    tone (2,587,200); delay(250);   //2
    tone (2,698,250); delay(250);   //4
    tone (2,659,150); delay(150);   //3
    tone (2,659,150); delay(150);   //3
    tone (2,698,250); delay(250);   //4
    tone (2,659,150); delay(150);   //3
    tone (2,659,150); delay(150);   //3
    tone (2,698,250); delay(250);   //4
    tone (2,659,150); delay(150);   //3
    tone (2,659,150); delay(150);   //3
    tone (2,698,250); delay(250);   //4
    tone (2,659,150); delay(150);   //3
    tone (2,659,150); delay(150);   //3
    tone (2,698,250); delay(250);   //4
    tone (2,659,150); delay(150);   //3
    tone (2,659,150); delay(150);   //3
    tone (2,587,200); delay(250);   //2
    tone (2,523,400); delay(400);   //1
    break;
 //===============================================================================

    case 6: //LAGU 6
    tone (2,523,370); delay(370);   //1
    tone (2,784,200); delay(240);   //5
    tone (2,698,200); delay(240);   //4
    tone (2,784,450); delay(450);   //5

    tone (2,659,250); delay(300);   //3
    tone (2,698,200); delay(250);   //4
    tone (2,659,250); delay(300);   //3

    tone (2,587,300); delay(300);   //2
    tone (2,523,600); delay(600);   //1

    tone (2,880,600); delay(600);   //6
    tone (2,784,300); delay(300);   //5
    tone (2,698,300); delay(300);   //4
    tone (2,880,600); delay(600);   //6
    tone (2,784,200); delay(270);   //5
    tone (2,698,270); delay(290);   //4
    tone (2,698,210); delay(260);   //4
    tone (2,784,210); delay(260);   //5
    tone (2,698,210); delay(260);   //4
    tone (2,587,350); delay(350);   //2

    tone (2,587,250); delay(270);   //2
    tone (2,698,250); delay(270);   //4
    tone (2,880,300); delay(300);   //6
    tone (2,784,250); delay(250);   //5
    tone (2,784,900); delay(900);   //5
    
    tone (2,880,200); delay(240);   //6
    tone (2,880,400); delay(400);   //6
    tone (2,784,200); delay(200);   //5
    tone (2,698,250); delay(250);   //4
    tone (2,698,900); delay(900);   //4   
    break;
 //===============================================================================

    case 7: //LAGU 7
    tone (2,523,170); delay(220);   //1
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1

    tone (2,523,170); delay(220);   //1
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1

    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1

    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //35
    tone (2,784,170); delay(220);   //35
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5

    tone (2,698,170); delay(220);   //4
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,784,170); delay(220);   //5
    tone (2,587,170); delay(220);   //2

    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    break;
//===============================================================================

    case 8: //LAGU 8
    tone (2,587,200); delay(230);   //2
    tone (2,523,170); delay(200);   //1
    tone (2,587,200); delay(250);   //2
    tone (2,587,430); delay(430);   //2
    tone (2,659,200); delay(200);   //3
    tone (2,698,200); delay(210);   //4
    tone (2,659,190); delay(200);   //3
    tone (2,587,200); delay(250);   //2
    tone (2,587,250); delay(250);   //2

    tone (2,698,250); delay(250);   //4
    tone (2,659,200); delay(220);   //3
    tone (2,523,200); delay(280);   //1
    tone (2,523,200); delay(280);   //1
    tone (2,523,200); delay(280);   //1
    tone (2,659,170); delay(200);   //3
    tone (2,659,170); delay(200);   //3
    tone (2,587,200); delay(250);   //2
    tone (2,587,300); delay(300);   //2

    tone (2,523,150); delay(250);   //1
    tone (2,587,200); delay(250);   //2
    tone (2,587,430); delay(430);   //2
    tone (2,659,200); delay(200);   //3
    tone (2,698,250); delay(250);   //4
    tone (2,587,200); delay(250);   //2
    tone (2,587,250); delay(250);   //2

    tone (2,587,180); delay(210);   //2
    tone (2,698,180); delay(210);   //4
    tone (2,880,180); delay(210);   //6
    tone (2,880,180); delay(210);   //6
    tone (2,880,240); delay(240);   //6
    tone (2,784,180); delay(220);   //5
    tone (2,698,200); delay(250);   //4
    tone (2,659,180); delay(220);   //3
    tone (2,698,180); delay(220);   //4
    tone (2,587,170); delay(230);   //2
    tone (2,587,170); delay(230);   //2
    tone (2,587,250); delay(250);   //2

    tone (2,698,180); delay(230);   //4
    tone (2,880,180); delay(230);   //6
    tone (2,880,150); delay(280);   //6
    tone (2,784,150); delay(280);   //5
    tone (2,698,150); delay(280);   //4
    tone (2,659,150); delay(280);   //3
    tone (2,523,130); delay(140);   //1
    tone (2,523,130); delay(140);   //1
    tone (2,523,200); delay(200);   //1
  
    tone (2,659,150); delay(200);   //3
    tone (2,784,150); delay(200);   //5
    tone (2,784,260); delay(260);   //5
    tone (2,698,150); delay(220);   //4
    tone (2,659,150); delay(210);   //3
    tone (2,659,180); delay(260);   //3
    tone (2,698,150); delay(150);   //4

    tone (2,659,180); delay(230);   //3
    tone (2,784,230); delay(230);   //5
    tone (2,784,250); delay(250);   //5
    tone (2,698,150); delay(260);   //4
    tone (2,659,150); delay(260);   //3
    tone (2,587,270); delay(270);   //3
    tone (2,698,150); delay(230);   //4
    tone (2,587,130); delay(170);   //2
    tone (2,587,130); delay(170);   //2
    tone (2,587,120); delay(120);   //2
    break;
//===============================================================================

    case 9: //LAGU 9
    tone (2,523,300); delay(320);   //1
    tone (2,523,170); delay(250);   //1
    tone (2,587,500); delay(500);   //2
    tone (2,523,500); delay(500);   //1
    tone (2,698,500); delay(500);   //4
    tone (2,659,1000); delay(1000); //3

    tone (2,523,300); delay(320);   //1
    tone (2,523,170); delay(250);   //1
    tone (2,587,500); delay(500);   //2
    tone (2,523,500); delay(500);   //1
    tone (2,784,500); delay(500);   //5
    tone (2,698,1200); delay(1200); //4

    tone (2,523,250); delay(300);   //1
    tone (2,523,250); delay(320);   //1
    tone (2,880,600); delay(600);   //6
    tone (2,784,400); delay(500);   //5
    tone (2,698,250); delay(300);   //4
    tone (2,698,250); delay(320);   //4
    tone (2,659,400); delay(400);   //3
    tone (2,587,600); delay(600);   //2
    
    tone (2,880,250); delay(300);   //6
    tone (2,880,250); delay(320);   //6
    tone (2,784,500); delay(550);   //5
    tone (2,698,500); delay(500);   //4
    tone (2,784,500); delay(500);   //5
    tone (2,698,1000); delay(1000); //4
    break;
//===============================================================================

    case 10: //LAGU 10
    tone (2,523,100); delay(150);   //1
    tone (2,523,120); delay(190);   //1
    tone (2,698,400); delay(450);   //4
    tone (2,880,500); delay(500);   //6
    tone (2,523,50) ; delay(100);   //1
    tone (2,523,70) ; delay(140);   //1
    tone (2,698,200); delay(300);   //4
    tone (2,880,1000); delay(1000); //6

    tone (2,698,150); delay(250);   //4
    tone (2,698,150); delay(250);   //4
    tone (2,659,150); delay(250);   //3

    tone (2,587,170); delay(200);   //2
    tone (2,523,400); delay(400);   //1
    tone (2,523,50) ; delay(100);   //1
    tone (2,523,70) ; delay(140);   //1
    tone (2,659,200); delay(300);   //3
    tone (2,784,200); delay(300);   //5
    tone (2,523,50) ; delay(100);   //1
    tone (2,523,70) ; delay(140);   //1
    tone (2,659,300); delay(400);   //3
    tone (2,784,400); delay(600);   //5
   
    tone (2,784,100); delay(150);   //5
    tone (2,880,110); delay(150);   //6
    tone (2,784,120); delay(150);   //5
    tone (2,698,130); delay(180);   //4
    tone (2,659,150); delay(200);   //3
    tone (2,587,200); delay(250);   //2
    tone (2,523,450); delay(450);   //1
    break;
//===============================================================================

    case 11: //LAGU 11
    tone (2,523,170); delay(220);   //1
    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //36
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //34
    tone (2,784,170); delay(220);   //35
    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //43
    tone (2,784,170); delay(220);   //5

    tone (2,880,170); delay(220);   //6
    tone (2,659,170); delay(220);   //34
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,698,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,698,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,523,170); delay(220);   //

    tone (2,587,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,698,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,698,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,523,170); delay(220);   //

    tone (2,587,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,698,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,698,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,659,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,587,170); delay(220);   //
    tone (2,523,170); delay(220);   //
    break;
//===============================================================================


    case 12: //LAGU 12
    tone (2,659,170); delay(220);   //4
    tone (2,659,170); delay(220);   //4
    tone (2,659,170); delay(220);   //4
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1

    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,523,170); delay(220);   //1
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4

    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4

    tone (2,523,170); delay(220);   //1
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,523,170); delay(220);   //1
    tone (2,523,170); delay(220);   //1
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4

    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1     

    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    break;
//===============================================================================
    case 13: //LAGU 13
    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5

    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3

    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,523,170); delay(220);   //1
    tone (2,523,170); delay(220);   //1
    break;
//===============================================================================

    case 14: //LAGU 14
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4

    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4

    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5

    tone (2,880,170); delay(220);   //6
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6



    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6

    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,587,170); delay(220);   //2
    tone (2,687,170); delay(220);   //2
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5    
    tone (2,880,170); delay(220);   //6
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4

    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6

    break;
//===============================================================================

    case 15: //LAGU 15
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4

    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,669,170); delay(220);   //3
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5

    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
   

    break;
//===============================================================================

    case 16: //LAGU 16
    tone (2,784,170); delay(220);   //5
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3

    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2

    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
  
    break;
//===============================================================================

    case 17: //LAGU 17
    tone (2,587,170); delay(220);   //42
    tone (2,523,170); delay(220);   //42
    tone (2,587,170); delay(220);   //35
    tone (2,587,170); delay(220);   //35
    tone (2,659,170); delay(220);   //46
    tone (2,698,170); delay(220);   //46
    tone (2,659,170); delay(220);   //53
    tone (2,587,170); delay(220);   //53
    tone (2,587,170); delay(220);   //42
    tone (2,698,170); delay(220);   //42
    tone (2,659,170); delay(220);   //53
    tone (2,523,170); delay(220);   //53
    tone (2,523,170); delay(220);   //46
    tone (2,523,170); delay(220);   //46
    tone (2,659,170); delay(220);   //46
    tone (2,659,170); delay(220);   //53
    tone (2,587,170); delay(220);   //53
    tone (2,587,170); delay(220);   //42
    tone (2,523,170); delay(220);   //42

    tone (2,587,170); delay(220);   //46
    tone (2,523,170); delay(220);   //46
    tone (2,587,170); delay(220);   //53
    tone (2,587,170); delay(220);   //42
    tone (2,659,170); delay(220);   //42
    tone (2,698,170); delay(220);   //46
    tone (2,659,170); delay(220);   //46
    tone (2,587,170); delay(220);   //53
    tone (2,587,170); delay(220);   //53
    tone (2,698,170); delay(220);   //42
    tone (2,659,170); delay(220);   //42
    tone (2,523,170); delay(220);   //46
    tone (2,523,170); delay(220);   //46
    tone (2,523,170); delay(220);   //
    tone (2,659,170); delay(220);   // 
    break;
//===============================================================================
    case 18: //LAGU 18
    tone (2,587,170); delay(220);   //2
    tone (2,698,170); delay(220);   //4
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,880,170); delay(220);   //6
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,587,170); delay(220);   //2
    tone (2,698,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2

    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2

    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,587,170); delay(220);   //2
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,587,170); delay(220);   //2
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,523,170); delay(220);   //1 

    break;
//===============================================================================
    case 19: //LAGU 19
    tone (2,698,170); delay(220);   //4
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //4
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4

    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
  



    break;
//===============================================================================
    case 20: //LAGU 20
    tone (2,523,170); delay(220);   //1
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //4
    tone (2,523,170); delay(220);   //1
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4
    tone (2,698,170); delay(220);   //4

    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,698,170); delay(220);   //\
    tone (2,784,170); delay(220);   //5
    tone (2,523,170); delay(220);   //1
    tone (2,698,170); delay(220);   //4 

    break;
//===============================================================================
    case 21: //LAGU 21
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2

    tone (2,587,170); delay(220);   //2
    tone (2,698,170); delay(220);   //4
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,523,170); delay(220);   //1
    tone (2,523,170); delay(220);   // 1
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,587,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,698,170); delay(220);   //4
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,659,170); delay(220);   //3
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1
    tone (2,523,170); delay(220);   //1
    tone (2,659,170); delay(220);   //3
    tone (2,784,170); delay(220);   //5
    tone (2,523,170); delay(220);   //1
    tone (2,587,170); delay(220);   //2
    tone (2,587,170); delay(220);   //2
    tone (2,523,170); delay(220);   //1

    tone (2,587,170); delay(220);   //2
    tone (2,698,170); delay(220);   //2
    tone (2,659,170); delay(220);   //4
    tone (2,523,170); delay(220);   //3
    tone (2,523,170); delay(220);   //2
    tone (2,523,170); delay(220);   //3
    tone (2,659,170); delay(220);   //4

    tone (2,587,170); delay(220);   //6
    tone (2,698,170); delay(220);   //5
    tone (2,659,170); delay(220);   //4
    tone (2,523,170); delay(220);   //5
    tone (2,880,170); delay(220);   //6
  
  
    break;
//===============================================================================

  }
  } 
  buttonUpState = digitalRead(switchUpPin);
  if (buttonUpState != lastButtonUpState) 
  {
    if (buttonUpState == HIGH) 
    {
      if(counter == 21)
      {
        counter = -1;
      }
      counter++;
      Serial.println(counter);
      changeNumber(counter);
      delay(300);
    }
   delay(50);
  }
  changeNumber(counter);

    buttonDownState = digitalRead(switchDownPin);
  if (buttonDownState != lastButtonDownState) 
  {
    if (buttonDownState == HIGH) 
    {
      if(counter == 0)
      {
        counter = +22;
      }
      counter--;
      Serial.println(counter);
      changeNumber(counter);
      delay(300);
    }
   delay(50);
  }
  changeNumber(counter);
}


void changeNumber(int buttonPress)
{
  switch (buttonPress)
  {
    //number 0
    case 0:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, HIGH);
      break;
    //number 1
    case 1:
      digitalWrite(A, HIGH);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, HIGH);
      digitalWrite(F, HIGH);
      digitalWrite(G, HIGH);
      break;
    //number 2
    case 2:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, HIGH);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, HIGH);
      digitalWrite(G, LOW);
      break;
    //number 3
    case 3:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, HIGH);
      digitalWrite(F, HIGH);
      digitalWrite(G, LOW);
      break;
    //number 4
    case 4:
      digitalWrite(A, HIGH);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, HIGH);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    //number 5
    case 5:
      digitalWrite(A, LOW);
      digitalWrite(B, HIGH);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, HIGH);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    //number 6
    case 6:
      digitalWrite(A, LOW);
      digitalWrite(B, HIGH);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    //number 7
    case 7:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, HIGH);
      digitalWrite(F, HIGH);
      digitalWrite(G, HIGH);
      break;
    //number 8
    case 8:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    //number 9
    case 9:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, HIGH);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
    case 10:
      digitalWrite(A, LOW);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
      case 11:
      digitalWrite(A, HIGH);
      digitalWrite(B, HIGH);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
      case 12:
      digitalWrite(A, LOW);
      digitalWrite(B, HIGH);
      digitalWrite(C, HIGH);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, HIGH);
      break;
      case 13:
      digitalWrite(A, HIGH);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, HIGH);
      digitalWrite(G, LOW);
      break;
      case 14:
      digitalWrite(A, LOW);
      digitalWrite(B, HIGH);
      digitalWrite(C, HIGH);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
      case 15:
      digitalWrite(A, LOW);
      digitalWrite(B, HIGH);
      digitalWrite(C, HIGH);
      digitalWrite(D, HIGH);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
      case 16:
      digitalWrite(A, HIGH);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
      case 17:
      digitalWrite(A, HIGH);
      digitalWrite(B, HIGH);
      digitalWrite(C, HIGH);
      digitalWrite(D, HIGH);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, HIGH);
      break;
      case 18:
      digitalWrite(A, HIGH);
      digitalWrite(B, LOW);
      digitalWrite(C, LOW);
      digitalWrite(D, LOW);
      digitalWrite(E, HIGH);
      digitalWrite(F, HIGH);
      digitalWrite(G, HIGH);
      break;
      case 19:
      digitalWrite(A, HIGH);
      digitalWrite(B, HIGH);
      digitalWrite(C, HIGH);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
      case 20:
      digitalWrite(A, HIGH);
      digitalWrite(B, HIGH);
      digitalWrite(C, HIGH);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, HIGH);
      break;
      case 21:
      digitalWrite(A, LOW);
      digitalWrite(B, HIGH);
      digitalWrite(C, HIGH);
      digitalWrite(D, LOW);
      digitalWrite(E, LOW);
      digitalWrite(F, LOW);
      digitalWrite(G, LOW);
      break;
      case 22:
      digitalWrite(A, HIGH);
      digitalWrite(B, HIGH);
      digitalWrite(C, LOW);
      digitalWrite(D, HIGH);
      digitalWrite(E, LOW);
      digitalWrite(F, HIGH);
      digitalWrite(G, LOW);
      break;
  }
}