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.
Getting back into ipad
Hi! I use to use my old ipad 2 as a synth a sample launcher. I really enjoyed it, but it got and over time I started to get more into hardware.
These days I play mostly with my modular synth, and was thinking of picking up a newer ipad to use as a step sequencer/looper for the synth, and maybe use as a drum machine at the same time.
Is it still worth getting something older, like an ipad air 2? I am not really going to use it as a DAW or with something very resource heavy.