Years ago when up at the QRS factory in Buffalo NY, I scanned many Piano Rolls and converted them to MIDI files. Found this but it was only raw data and I was told by Ramsi P. Tick the owner of QRS, that this was an actual roll cut by Fats Waller. I knew that when the factory had celebrities come in to cut rolls, J Lawrence Cook would edit out the errors so this may have some corrections. I've enclosed the MIDI file also for you to download and play on your instrument. I don't know the name of the tune so help would be appreciated.