#include "Song.h"
Song* mySong; // Zeiger

void setup() {
  int notes[] = {262, 294, 330, 349, 392};
  mySong = new Song(notes, sizeof(notes) / sizeof(notes[0]), 2); // oder: Song mySong(notes, 5, 2);
  mySong->play(); 
}

void loop() {
  mySong->play();
}