TkTag is a Tk/Perl application for editing and modifying ID3 tags in mp3 files. It includes the ability to construct tags by parsing filenames and to rename files based on tag fields.
Blind MP3 plays audio files using an AUI (Audible User Interface). Speech synthesis announces where in the filesystem a user is, and controls are used to browse the filesystem and select files to play. It is ideal for people who want an MP3 player but don't want to have to look at it.
Gstring is yet another guitar tuning application (written in C). A non-GUI version called "string" is included so you can run this without GTK or GtkDatabox.
Songforge umożliwia tworzenie muzyki w środowisku open source. Został napisany w PHP i MySQL i pozwala użytkownikom na upload i ściąganie plików audio (MP3/Ogg) oraz robienie remixów.
Nightingale is a simple sound-editor. It was written when I found that I couldn't reasonably load a 300Mb wav-file in any sound-editor to cut it up into pieces.
Supercast to zgodny z SHOTcastem serwer streamingu MP3 dla Uniksa. Jego najbardziej nowatorską funkcją jest możliwość re-enkodowania strumienia źródłowego na jeden lub więcej innych bitrate-ów i przesyłanie strumienia wynikowego razem z oryginalnym.