Tracker, composer, and player, all in one.

Sequencer with MIDI, audio, and video functionalities. Includes support for CoreAudio, CoreMIDI, Audio Units, Music Devices, Music Effects, VST, and Premiere.

Audio file management system for Digital Audio workstation networks having a Mac attached.

Handy reference to chords for musicians. For Mac OS X.

Tips and suggestions for Apple's GarageBand. Covers live and MIDI recordings, effects, mixing, mastering and links to free loops.

MIDI music authoring solution for OS X with Aqua interface, music notation, intended mostly for musical amateurs.

Professional sound editor.

A software synthesizer for Mac and Windows. Similar to CSound in capabilities, but easier to use.

Bundle of real-time plugins for Mark of the Unicorn's Digital Performer and Audio Desk.

Batch audio conversion application with support for a variety of formats, along with the retention of metadata for .mp3, Ogg Vorbis, FLAC, and Quicktime files.