A mod/player editor written in MIPS assembly code for the PSX, never got past beta - but here is in case you would like a look...

Download here

* 100% MIPS assembly code
* 24 track sequencer
* 24 channel music output
* 5 octaves
* Standard "trakker" layout
* Standard "Trakker" effects

* 4096 song positions
* 4096 possible patterns
* 4096 possible sub patterns
* Control effects on any note
* Special control effects per pattern