Audiobus: Use your music apps together.
What is Audiobus? — Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.Download on the App Store
Audiobus is the app that makes the rest of your setup better.
Might make a 3rd ipad midi.
Cck and a mio ( or mioxc )
Is the mio ok for ios. The mioxc is marketed for ios but has usbc and adapter. Would rather regular usb ( if it works )
From spare 5 pin midi of a faderfox pc12 ( which actually routes an ec4 )
Should be ok.
What are the other brands.