void setup() {
  pinMode(13,OUTPUT);
  pinMode(12,INPUT);
  pinMode(11,INPUT);
  pinMode(10,INPUT);
  pinMode(9,INPUT);
  pinMode(8,INPUT);
  pinMode(7,INPUT);
  pinMode(6,INPUT);
  pinMode(5,INPUT);
  pinMode(4,INPUT);
  pinMode(3,INPUT);
  pinMode(2,INPUT);
  pinMode(1,INPUT);
}

void loop() {
  if(digitalRead(12)==HIGH)
 {
   tone(13,523.251,1);
 }
  if(digitalRead(11)==HIGH)
 {
   tone(13,554.365,1);
 }
   if(digitalRead(10)==HIGH)
 {
   tone(13,587.330,1);
 }
    if(digitalRead(9)==HIGH)
 {
   tone(13,622.254,1);
 }
    if(digitalRead(8)==HIGH)
 {
   tone(13,659.255,1);
 }
    if(digitalRead(7)==HIGH)
 {
   tone(13,698.456,1);
 }
    if(digitalRead(6)==HIGH)
 {
   tone(13,739.989,1);
 }
     if(digitalRead(5)==HIGH)
 {
   tone(13,783.991,1);
 }
     if(digitalRead(4)==HIGH)
 {
   tone(13,830.609,1);
 }
     if(digitalRead(3)==HIGH)
 {
   tone(13,880,1);
 }
     if(digitalRead(2)==HIGH)
 {
   tone(13,932.328,1);
 }
     if(digitalRead(1)==HIGH)
 {
   tone(13,987.767,1);
 }
}