Audiality is a highly scalable and portable audio engine and synthesizer. MIDI files are used in combination with scripting and modular synthesis, to minimize file sizes and maximize flexibility. Audiality can be used as a music and sound effects player in multimedia productions, or as a realtime MIDI synthesizer.
libaio is meant to solve the problem of differing digital audio platforms once and for all. JACK is unnecessarily complex for most applications, and while libao's support for file output is cool, it limits what the API can do and is therefore inadequate for any kind of real time application. libaio provides a clean application interface and a simple compile-time driver switching decision, yielding a lightweight way to use the local sound hardware without having to care what it is.
Audio Tag Tool is a program to manage the information fields in MP3 and Ogg Vorbis files, commonly called tags. It can be used to edit tags one by one, but the most useful features are mass tag and mass rename. These are designed to tag or rename hundreds of files at once, in any desired format.
The Audio* Music Synthesis Project is music creation software. Currently it features Mojo Synth which is a polyphonic analog modelling synth that has a 64 step sequencer and can also be played from a MIDI keyboard. It attempts to emulate classic analog sounds from Roland M-100, Korg MS-20, and Mini Moog synthesizers.
Audio::Xmpcr is a Perl API to the XM PCR Satellite radio. It offers two different operating modes (direct and remote+daemon) via a single interface, continuous device polling for instant, accurate song listings, auto notification when songs change on any channel, and a few utility programs including a Web interface for remote control/listening to the radio via icecast, a stream ripper that divides songs up into properly-named wav files (for making MP3s), and a finder that searches channels for the song(s) wanted, and records just those.