Sonic Pi is your free code-based music creation and performance tool
Strawberry Music Player
Audiocraft is a library for audio processing and generation
Audio server, programming language, and IDE for sound synthesis
A high quality MP3 encoder
A free multi-track audio editor and recorder
Linux Studio Plugins Project
PC based Oscilloscope and Spectrum analyzer using sound card
Search, Download, Play, Share on Bittorrent and the cloud
X11 Popup that shows the state of your audiocontrol
Quimup is a Linux client for MPD
Updated version of abc2midi
Spatially Oriented Format for Acoustics
Channel Code Copy of Compact Discs
Repeating your Intentions to aid in manifestation
Machine graph audio engine for computer games
An entire virtual orchestra in LV2 plugin format
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
akaidatdecode: tool for the AKAI S1000/S3000 DAT-backup format
Open Source HTML5 Web Audio Library
What's inside your mp3 files REALLY ?
tools for the floppy format of the Sequential Prophet 2000/2002