#include "pitches.h"

int speaker = 10;
bool button;
bool prevButton;
int counter;

int notes[] = {
  NOTE_A2, NOTE_B2, NOTE_C3, NOTE_D3, NOTE_E3, NOTE_F3, NOTE_G3
};

void setup() {
  // put your setup code here, to run once:
  pinMode(speaker, OUTPUT);
  pinMode(button, INPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  button = digitalRead(8);
  
  if (button != prevButton) {
    if(button) {
      counter++;
    }
  }
  Serial.println(counter);
  tone(speaker, notes[counter%7]);
  prevButton = button;
}