Code gets stuck on the last note of the melody after being played

[alto777]

@Danois90

const byte array2[ARRAY_SIZE] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }; //Not OK

There is nothing wrong with supply too few initial values.

Where it goes wrong is using whatever ends up in uninitialised locations.

Would the remaining spot(s) be 0 in this case?

a7