// This program plays a tone when a button is pressed

/* define nicknames or aliases for things and values for constants   */
  #include "pitches.h"                // library of tones and their frequencies
  #define SPEAKER_PIN 8                // defines which pin of Arduino connected to the loud speaker  
  #define BUTTON_PIN 6                // defines which pin of Arduino is connected to the push button                                       

void setup() {
//Tell Arduino how each pin should work, as an output or input
  pinMode(SPEAKER_PIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {   //the program code below repeats endlessly

if (digitalRead( BUTTON_PIN) == LOW) {
  tone(SPEAKER_PIN, NOTE_C7);
  digitalWrite(LED_BUILTIN, HIGH);
}
else{
  digitalWrite(LED_BUILTIN, LOW);
  noTone(SPEAKER_PIN);
}
}