Music-X
David Joiner has just finished adding support for multiple MIDI
interfaces for Music-X. He can record from several keyboards on different
interfaces simultaneously. He is trying to support as many serial cards as
possible, but some are easier than others (and some don't do MIDI at all).
This will be part of the 1.1 upgrade, which I think will be a ten or
fifteen dollar deal (TBD). —Mike