MIDI Out: (note: not all instruments support General MIDI)
If you don't see any General MIDI instrument, please consider installing Jazz-Plugin!
Percussion instruments are set on MIDI Channel 10 (when zero-based indexing is used, that corresponds to number 9).
General Midi Level 1 specs define percussion instruments in note range 35-81. Sounds for ranges 27-34 and 82-87 are defined in General Midi Level 2 specs.