http://bugs.winehq.org/show_bug.cgi?id=21714
--- Comment #12 from Jörg Höhle hoehle@users.sourceforge.net 2010-08-04 04:28:48 --- How to use the third winmm MIDI device (#2) instead of the first (#0) one:
REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Multimedia\MIDIMap] "CurrentInstrument"="#2"
Isn't it what the docs say? Please feel free to contribute to the Wiki. Luke, please test if you get music this way.
How to set oss driver to use midiout device 2 and 3 ?
I'm not aware of the possibility to use 2 devices for one piece of music in Wine. MSDN's description of the MIDI mapper makes one believe it should work in native, but somehow I doubt it (given their design).