Open Source Music and Audio Software

• Audacity: The Free, Cross-Platform Sound Editor  - Free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems.
• iRadeo  - Plays MP3 files and serves as a podcast or online radio streaming platform.
• MP3 Book Helper  - Features a rapid Mp3 and Ogg, Speex, Flac Vorbis tags editing and file renaming functions.
• MPEG4IP: Open Source MPEG4 Package  - Presents a continuous system in exploring streaming multimedia. Also shows packages including open source.
• MuseScore  - Music composition and notation software featuring a virtual note sheet, unlimited number of staves, platform independent code, and multilingual support.
• NINJAM  - Real-time music collaboration software. Site provides downloads and features a discussion forum and music made with NINJAM.
• Open Sound World  - Presents information on the expanded programming environment allowing musicians, sound designers and researchers to process sound in response to expressive real-time control.
• OpenSong.org  - Open-source source application the management of lyrics, chords, lead sheets, computer projection, and overheads.
• orDrumbox  - Features automatic music composition capabilities. With downloads and contact information.
• pulpTunes  - Software serving as a web server for iTunes, enabling access to iTunes music library through a web browser.
• Traverso DAW  - Cross-platform multi-track audio recording and editing software suite. Provides a comprehensive range of functions, from audio recording to CD mastering.
• Ubuntu-Studio Project  - Provides information on the creation flavor of Ubuntu for the Linux audio, video, and graphic professional.
• Zinf  - Presents an audio player for Linux and Win32 which supports MP3, Ogg/Vorbis, and the WAV and Audio.