https://github.com/micknoise/Maximilian DSP C++ https://github.com/benzguo/MusicKit Music theory Swift https://github.com/Tonejs/Tone.js Web Audio framework JavaScript https://github.com/olilarkin/wdl-ol Audio Plugins C https://github.com/vinniefalco/DSPFilters DSP C++ https://github.com/PaulBatchelor/Soundpipe DSP C https://github.com/