const int SPEAKER = 9;
const int BUTTON_PIN = 2;

int notes[] = {392, 392, 392, 311, 466, 392, 311, 466, 392, 587, 587, 587, 622, 466, 369, 311, 466, 392, 784, 392, 392, 784, 739, 698, 659, 622, 659, 415, 554, 523, 493, 466, 440, 466, 311, 369, 311, 466, 392};

// Ускоренные длительности (в 2 раза быстрее)
int times[] = {175, 175, 175, 125, 50, 175, 125, 50, 350, 175, 175, 175, 125, 50, 175, 125, 50, 350, 175, 125, 50, 175, 125, 50, 50, 50, 225, 75, 175, 125, 50, 50, 50, 225, 75, 175, 125, 50, 375};

bool playing = false;
int currentNote = 0;
unsigned long noteStartTime = 0;

void setup() {
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  pinMode(SPEAKER, OUTPUT);
}

void loop() {
  static bool lastBtn = HIGH;
  bool btn = digitalRead(BUTTON_PIN);
  
  if (btn == LOW && lastBtn == HIGH) {
    playing = !playing;
    if (!playing) {
      noTone(SPEAKER);
      currentNote = 0;
    } else {
      currentNote = 0;
      noteStartTime = millis();
      tone(SPEAKER, notes[0]);
    }
    delay(50);
  }
  lastBtn = btn;
  
  if (playing && currentNote < 39) {
    if (millis() - noteStartTime >= (unsigned long)times[currentNote] * 2) {
      noTone(SPEAKER);
      currentNote++;
      if (currentNote < 39) {
        noteStartTime = millis();
        tone(SPEAKER, notes[currentNote]);
      } else {
        playing = false;
      }
    }
  }
}