Stage Traxx V3.3.2 (6051)
iPad Mini v14.4.2 Model MUX62X/A
iTunes v184.108.40.206 on Win 10 64
Unfortunately MIDI files transferred from iTunes are shown in ST3 to have 0:00 minutes and display File Not Found when attempting to play.
Sure enough the Artist field was unpopulated and I could edit that with ST3, through Song Details, to no effect. Unable to edit on iTunes.
Did a resync, removed MIDI from iPad, retransferred, confirmed Artist was populated - no change.