Schism Tracker is an editor and player for tracked music (IT, XM, S3M, MOD, etc.), heavily based on the look and feel of the DOS program Impulse Tracker.

Changes:

Using pbsds’s spiffy icon. Thanks!
No longer crashes at startup when loaded with Bannerbomb. (Still crashes at exit.)
Initial support for Doom .mus files, added by request of SandMan. No drums, and it doesn’t do pitchbends, but it’s a start.
Display changed to default to YUV overlay (much faster!)
Fixed a bunch of file load and playback bugs

http://wiibrew.org/wiki/Schism_Tracker