I use GarageBand on my IPad… it exports in all the usual formats. (I’m not sure about MIDI … not much of a MIDI user… but I need to explore that more.)
It also integrates seamlessly with Synth One, IMovie and then export to YouTube at a push of the Icon.
I made this video last night in about and hour, from a GarageBand sketch I did last week, using Synth One and one Cello Track from GarageBand Instruments. Made a slide show in IMovie from various IPhone photos taken in my front yard and the park across the street . (the neighborhood has a history of Alien encounters and UFO sightings… Pt. Mugu Naval Air Station is nearby… just sayin’’ )
@nostromer once described my music as “…organic and psychedelic…” …Yeah… I’ll take that… and I would add “minimalist.”
Hope you enjoy this