Renoise is a sophisticated music sequencer and audio processing application. It's an all-in-one music production environment for your personal computer. Based on MOD tracker software, its primary use is the composition of music using samples, (in WAV, AIFF, FLAC, Ogg, and MP3 format), plug-ins, and MIDI/OSC sequencing of VSTi/AudioUnits soft synths.
Karaoke con SMIL is a project to synchronize audio, text, and images and export the final result to SMIL, which can be played in multimedia players such as Real Player, Helix Player, Ambulant Player, etc. on several devices (computers, mobile phones, PDAs, etc.). In short, this application synchronizes the multimedia elements in a way similar to karaoke.
Crossfire is a Firefly Media Server client written for the Apple iPhone and the iPod touch. It has support for streaming, browsing, and searching music content. It supports both Mobile Safari and FireFox, but can be configured for various other devices such as Windows Mobile, Symbian, etc.
The Epeios MIDI to XML converter makes it possible to convert binary MIDI files to a format that allows them to be handled effectively with tools like CVS. If you put, using your favorite MIDI sequencer, the CVS '$Id$' tag (or other CVS tags) in the comment tag of the MIDI file, the changes made to this tag by CVS are propagated into the MIDI file.
python-musicbrainz2 provides simple, object oriented access to the MusicBrainz Web service. The MusicBrainz Project (see http://musicbrainz.org) provides music metadata maintained by its large and constantly growing user community. This package helps you to write CD ripper applications, taggers, and media players by giving easy access to music metadata.