I have recently acquired a secondhand version of this useful beast: Basically it allows you to file away bulk sysex dumps and thus setup patches easily on stage, and also will play SMF format 0 files, thus allowing you to take that on a gig instead of your expensive and bulky PC sequencing setup.
Thing is, the MIDI implementation chart is missing, and it would be nice to know exactly what the little beauty is capabale of.
If anyone has one which they would be willing to part with, or knows a web or FTP site I can download one from please contact me by email.
Bye Michael