Amiga MIDI
Band-in-a-Box's internal format is very concise and just consitsts of the
chord progression and various other things. It however saves it into a MIDI
format 1 as if it were performing it, consequently the file is necessarily
longer but fully portable to other sequencers. Unfortunately there isn't an
Amiga version; but fortunately I have a PC AT clone, and I MIDI the two
together anyway for convenience using MIDI clocks sent from BB to one of my
Amiga sequencers, typically KCS Level II, Bars&Pipes, Music-X, or Master
Tracks Pro. I also only have "transformer". But also have DOS2DOS, and am
inclined to get CrossDOS soon also.