alphaTab is a cross platform music notation and guitar tablature rendering library.
The Web Audio API, developed by the W3C Audio WG
Library to simplify the way you create and manipulate sounds with the Web Audio API.
Media Tags Reader (ID3, MP4, FLAC)
Web Audio DAW. Use the HTML5 Web Audio API for dynamic sound synthesis. It's like jQuery for your ears.
Web Audio Library
Making life easy to create a MIDI-app on the web. Includes a library to program synesthesia into your app for memory recognition or for creating trippy effects. Convert soundfonts for Guitar, Bass, Drums, ect. into code that can be read by the browser. Supports multiple simultaneous instruments and perfect timing.