A netease cloud music based UI
Easily apply cool gnarly voice filters to your audio files
Use the gervill sofware midi synthesizer on Android
BASS audio library add-on based on ZXTune library
PHP Webclient Collection for MPD (music player daemon)
Open source speech models for Julius in English and other languages.
Extensible Brainwave Entrainment library for Java
Open source brainwave entrainment application
Flash ActionScript3 dynamic audio library