I have been experimenting with algorithmic music from the mathematical point of view, not so much from music point of view, and I would like to point to a positive definite kernel for measuring the consonance of two pitches: $$k(a,b) = \frac{\gcd(a,b)^2}{ab}$$ The description can be find here. From the "sonification of math" point of view, I would like to mention the #InfinitePiChallenge where there are given infinitely many formulas for calculating $\pi$ and the challenge is to pick one formula and sonify it. I did that with a few formulas, two of which I like to highlight:
mathoverflowUser
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