OCRing Music from YouTube with Common Lisp

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2025-01-05 13:00:06

There's a tune on YouTube I always really liked called "Supersquatting." It was written by Dubmood and Zabutom, two really masterful chiptune composers, but this track always stood out to me as sounding really full and "fat." For those who don't know, these kinds of chiptunes are usually written in "tracker" software which is a category of music composing program that was popular in the 90s and early 2000s-- they produce "module" files which are self-contained music tracks containing both the note data and samples, which could be played back quickly in a game, keygen, or just for listening. There's a culture surrounding music trackers that's inmeshed with the demoscene, video games, and software cracking, but I digress-- here's a nice in-depth explanation video about it if you're interested.

The point is, this track Supersquatting in particular sounds really full, beyond normally what I considered to be possible with the (these days) rudimentary tools (FastTracker II), so I actually assumed when I first heard it that it must have been made in a more traditional DAW with VSTs and stuff. But then Dubmood himself put up an upload on YouTube of playing the track in Skale Tracker, and I saw that it's just an 8 channel FastTracker II tune. Damn. Maybe the channels have some EQ on them or something, but still, that sounds awesome for an XM file.