Sfront compiles MPEG 4 Structured Audio (MP4-SA) programs into efficient C programs that generate audio when executed. MP4-SA is a standard for normative algorithmic sound, which combines an audio signal processing language (SAOL) with score languages (MIDI and SASL). Under Mac OS X and Linux, sfront supports real-time, low-latency audio input/output and MIDI input. Under Mac OS X, sfront supports the creation of AudioUnit plug-ins. The documentation includes a book about SAOL programming.
Webplayer is a Borges-based, Web browser-controlled MP3 player. Webplayer features a file browser that can load or recursively load from a directory of MP3 files. It also provides simple playlist control and volume control (tested on FreeBSD). Components of Webplayer can be launched into separate windows or used in one big main window. Webplayer incorporates portions of Yoshinori Toki's rmp3.
Thump (The Unix MP3 Player) is a flexible and modular set of MP3 playing daemons written in Python. The daemons communicate with each other and the rest of the world via XML, and playlist management is handled by a combination of standard file manipulation utilities (such as find) and regular expressions.
Media File System is a simple product that provides a Zope interface to an HTTP media streaming folder. It's based on (and requires) the LocalFS product. The product currently supports .ra, .rm, and .mp3 files. Whenever a new file is created, the original file is hidden from the management interface, and a player file is created and shown instead.