AudioKit has introduced another free and open-source library for use in your apps. We’ve been focused on creating smaller repos that do one or two things. But are certainly open for expansion by the open-source community. The repos are small, so no one should be too overwhelmed by the code to feel confident making a pull request with their updates.
More Recent Free & Open-source libraries from AudioKit –
FLOW: NODE GRAPH EDITOR
PIANOROLL: TOUCH ORIENTED PIANO ROLL
TONIC MUSIC THEORY LIBRARY
SWIFTUI KEYBOARD REPO
Learn more about AudioKit code here.