Tonal.js: Functional music theory lib

• tonal

  11 3,688 7.3 TypeScript

  A functional music theory library for Javascript

  

They're using objects, including arrays [1], so I think they would have been more precise to say that they're using objects and arrays as simple data structures rather than using OO features like inheritance and mutation.

[1] https://github.com/tonaljs/tonal/blob/main/packages/chord/in...

• MidiWriterJS

  1 542 6.2 JavaScript

  ♬ A JavaScript library which provides an API for programmatically generating and creating expressive multi-track MIDI files and JSON.

I love Tonal.js, have used it for many personal projects including https://github.com/grimmdude/MidiWriterJS

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• playa

  1 59 - TypeScript

  A framework for musical composition. It allows creating custom music algorithms, musical phrases, percussion rhythms, harmonic sequences and more.

(shameless plug) If you're interested in something more focused on creating music with tools for generating melodies, chord progressions, drum beats, etc., check out PLAYA at https://github.com/ricardomatias/playa

• tune.js

  1 6 - JavaScript

  microtonal tuner built with Web Audio API 🎵

  

you might be interested in something like tune.js https://github.com/instrumentbible/tune.js

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