I’ve always liked sound programming, and DS sound programming is no exception. I decided to make a homebrew player for Ninty’s official music format (SSEQ), since the specs were online and there is not a decent homebrew sequenced music solution for the DS (the only decent thing is Maxmod, which unfortunately uses tracked music, which is a pain in the backside to make compared to the comfort of making MIDI files that get converted to the appropiate format).
You can find the sources to my proof-of-concept player on GitHub.
Enjoy!