I think it's possible by using the disassembled BMS/J_Audio data to create a MIDI file. But in the first place is the disassembled data already in MIDI format orstill BMS? other old tools simply are not that good and don't support pitch bend. I don't know very much about MIDI spec in general (I have some idea). I can see there is midi some type implementation which I believe is midi as input?? but I don't think it applies to this. I don't think it can be that hard to implement either as a separate program or in smssynth, if the command types and values are known then are you need to do is just paste the values into a midi file, set tempo, assign tracks, etc. I know a bit of python but I don't think I would be able to create such implementation myself. Would be very cool feature to be added. :)