http://bugs.winehq.org/show_bug.cgi?id=21714
--- Comment #6 from Raymond superquad.vortex2@gmail.com 2010-07-31 23:11:40 --- if you want to play midi file with more than 16 tracks , the wineoss.drv need to send the tracks to two midi devices which support 16 channels
trace:midi:OSS_MidiInit OSS info: midi[1] dev-type=0 capa=0 MidiOut[1] name='L"TiMidity port 0"' techn=1 voices=0 notes=0 chnMsk=ffff support=0 trace:midi:OSS_MidiInit OSS info: midi[2] dev-type=0 capa=0 MidiOut[2] name='L"TiMidity port 1"' techn=1 voices=0 notes=0 chnMsk=ffff support=0