WILL MARK BRAINLIEST (not for school question) Theoretically, if I wrote every possible combination for a 4 note melody and chord progression, and then I went to write a new song with an 8 note melody, wouldn't I just be reusing two 4 note melodies I already used. And so forth, if I wrote a 16 note melody, would that just be four of the 4 note melodies already used, if all had been used up? And same question for chord progressions. Does this make the amount of piano pieces possible finite?

actually no, you see, in order to solve your problem of all possible combinations, you would need to keep into consideration the maximum number of notes, and well let’s say you had a piano and needed a 16 note melody. You can reuse some of the same notes in a row. So the maximum number of 16 note combinations should be 1-8 different notes with 16 notes total each time so 16^8 which is 4294967296. And four would be 4^8 which is 65536. Which is significantly less. Also, a 16 note melody needs 16 notes for each combo otherwise it’s not a 16 note melody. And a four note melody needs four notes. So because of either more or less digits, they will never be able to share the same combination.

Explanation:

sorry the way I worded that doesn’t make any sense. But I’m only in high school so yeah