I made this song, in 2001, via about 5 lines of C and Perl mashed together on a Linux command line and piped directly into /dev/audio. I used slightly different code on the left and right channels. I wasn't trying to make "music", just a byte pattern so complex I no longer understood it, to see what it sounded like. The result was shockingly structured and undergoes multiple cryptic phase changes over 20 minutes.