@polychrome @mogwai_poet So I did frankly way, way too much digging into this question and it looks to me like Justin Frankel was definitely 19 years old when ID3 tag support got added to WinAMP and he personally extended the genre list to include "Primus"
The first 80 genres were created by Eric Kemp / NamkraD, though, and history has not recorded much about him besides that he came up with the original format.
In 1935, Marcel Duchamp published a series of "rotoreliefs," rotating art to place on your turntable.
To learn the major scale, here's this five hour practice routine. (For minor, enh, just pretend it's major and start on the 6th scale degree.)
And here's a jazz band torturing themselves by trying to play it live: https://www.youtube.com/watch?v=oTlGnhGYXHw
I only bumped into Conlon Nancarrow's work in my 30s, but it matches my own creative ethos so well that it instantly entered my personal canon.
Here's one of his more accessible works, study 3 for player piano, the "Boogie Woogie Suite." https://www.youtube.com/watch?v=Kdm04Rz3wTk
Sandwich Imagineer at Twinbeard. Made Frog Fractions. May or may not have already made Frog Fractions 2. He/him.
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