Sometimes I want a song to follow a structure like AABA, so I need to define random seeds for each section. Each instrument might use the default seed, or the section seed - it might be too jarring if all the instruments suddenly change their bar structure (although I want that to happen sometimes anyway; and in some songs it shouldn't change at all - just a chord sequence change). Each section in the sequence has a unique seed too, which it might throw in their depending on the "variance" value of the song.

Of course, I want some songs to just ramble on without a structure, changing over time.

Before I make the next video, I need to add a bit more structure to the way bars are created. The first prototype just quickly added notes to random positions, which is OK sometimes, but leads to too many empty tracks.

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