[comp.sys.mac] MIDI and the Mac... interfacing/MIDI protocol

hkbirke@mit-amt (Hal Birkeland) (10/23/88)

recently I saw a neat MIDI/Mac demo (I can't remember the software product)
where the Mac was issuing MIDI commands to a synth.  My question is what
type of interface is involved (I know it's 31.25kbaud) and is it possible
to do this on other systems (which aren't blessed with being Macs)
:-) HP Bobcats and/or uVax IIs and/or IBM RTPCs.

--hal
Please tell me it's compatible with some standard communcations protocol
like RS422...