Modo is a ultra simple mod player for PSP. It does not only support .mod but also other tracked formats.

Changes:

Upgraded to libmpg123 1.4.3. Fixes crash because of invalid ID3 tags
Fixed volume boost. First boost level did nothing.
Improved MED playback. Instrument transpose value taken into account.
Added option to enable shuffle at startup. See included file modo.cfg.example.

http://forums.qj.net/showthread.php?t=115671