Some concrete ideas from Neil

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Neil:

My favourite way to skew an even distribution is to take the log base 2 of n (or 2^n if you want to skew the other way). Which I think is neat because we're dealing with ratios so much.

Rhythm is another pattern to explore. I don't have as much theory on this, maybe make the last note at least a crotchet and insert pseudo-random crotchets throughout the music. I like the idea of working the fibonacci sequence into it but I'm not sure how or whether it would work (since everything else is so based around integer ratios)

The other one is that folk tunes rely heavily on the call-and-response idea. Maybe there's a general way to measure how 'call-and-response'y a tune is and optimise for that. Or it's probably easier to hardcode a pattern where bar 9 is a repeat of bar 1 and bar 13 is a repeat of bar 5 (this is why we should use index 0 everyone, it makes much more sense than index 1!).