Endless song, never repeats a chord, plays all chords eventually.

Ideas
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This is a program that plays every possible chord in a somewhat “shuffled” sequence. It’s based on a modification of the Recaman sequence.

There’s a second program that doesn’t play every chord, but it is based on Woflram’s cellular automaton rule 225, and it never repeats a chord. When it’s about to repeat, another possible note is added to allow it to continue on.

endlessSongRecamanSlices.nb (1.32 MB)
endlessSongSlices.nb (156 KB)

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Wow, an endless song?! That is really interesting! Thanks for sharing this. Nice job!