SpessaSynth

SpessaSynth is a real-time synthesizer and MIDI player/editor based on SoundFont2, developed in TypeScript for web applications. Its primary use case includes remixing, experimenting, and playback of MIDI files with a user-friendly interface, featuring mobile compatibility, Web MIDI API support, karaoke options, and extensive exporting capabilities for various audio formats. Notable features include a dynamic visualization of music sequences, customizable synthesizer controls, and multi-language support, making it versatile for both casual users and music professionals.