As the SC88 has two MIDI in ports, i'd try using it as two different MIDI instruments connected to the Amiga. But that all depends on how many OUT ports your MIDI interface has. There's a few Amiga interfaces that have 2 or 3 MIDI out ports out there. Use a sequencing software such as Music-X or Dr. T's and assign two seperate channels to your two MIDI ports of the SC. Don't go for a tracker program just yet, as they tend to be akward on the MIDI part. There used to be an editor/librarian named Midi Quest that supported the SC55 module, but it stopped Amiga releases long ago, and i'm not sure it would cooperate with the SC88 although the 55 and 88 are both GM units..