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.
Generic questions: App development for iOS / iPadOS / macOS
I wanted to write down some of the answers I got or found, that helped me in this.
And I want to write down some open questions, while trying to "develop" something.
What I am trying to develop is not even clear.
I think about managing URLs, text and images and probably offering a way to encrypt them too.
Also, accessing any "document provider" (Files App), running side-by-side and in split-view or slide-over mode, seems to be essential for iPadOS ... regardless of what the App is finally used for. Basics!
Adding a Widget could be nice too, probably.
So, this is less about musical Apps, but more about the basics of any iOS / iPadOS / macOS App.
I will concentrate on Swift and SwiftUI, as this is what Apple is planning for.
Coming from C, I am also interested in C or Rust, but that sound like a very very future idea.
While posting my finding and problems, I would be more than happy to get some help from YOU!