Quimup is a Linux client for MPD
Summary
System-wide parametric equalizer interface for Equalizer APO
An Open-Source Music Player App for all your needs!
Linux Studio Plugins Project
What's inside your mp3 files REALLY ?
Yaamp — Яндекс.Музыка + Winamp
DSSI is an audio plugin API for soft synths and effects.
A feature packed DJ console and internet radio client for Linux users
9-Octave Chromatic Tuner
LilyPond sheet music text editor
SonoBus, a real-time network audio streaming collaboration tool
Soundnode App is the Soundcloud for desktop
Download album art for complete media library
ASIO output plugin for Windows Media Player
An algorithmic music composition system