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.
usb hub - focusrite - keylab
I bought an usb hub ([this one])(https://www.amazon.it/gp/product/B095LKP3JF/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 "this"))
my plan was simple: keylab61 into usbhub, focusrite 18i8 2 gen into usb hub, usb hub into original cck ipad.
unfortunatley this set up does not work, because the ipad does not see the audio interface nor the keylab (hardware unavaiable message in aum). The keylab is powered, I can totally use the keylab just by pluggin it directly in the cck, and that works fine. But I want to be able tu use the other focusrite channels for other microphones + aum.... I'm I missing something? thank you!