[Zubersoft]

MobileSheetsPro does not currently support playing back a MIDI file with a connected MIDI device. You can only send individual commands. To support doing something like sending a file to a device (which I do plan on eventually adding), I would need to have a MIDI sequencer implemented that would read through each MIDI event in the file and send them at the appropriate time. That means also providing a way of stopping that MIDI playback as it could take awhile to play through the entire MIDI song. 

Mike