Some Mac utilities to download, including Track Thief, a audio CD extractor.

Makes ejies, a collection of abstractions utilities, digital signal processing, JavaScripts tools he have developed in Max/MSP-Jitter

Editor of CDcovertool

Makes a drum machine.

Editor of mp3voodoo and ID3X, two mp3 utilities.

Editor of Mighty MIDI a lightweight MIDI player for OS X.

Makes AutoTag X which let you tag all the MP3 files ripped from a CD in one shot. It accesses the FreeDB database so you don't have to type.

MuseScore is a free cross platform WYSIWYG music notation program, licenced under GNU GPL.

Plug-ins developper

Makes Max Magic Microtuner, a Macintosh application (OS X and OS 9 Carbon) for creating and editing microtonal scales and keyboard mappings. You can import, edit and export 128-note MIDI Tuning Standard keymap files (.syx, .mid) compatible with the Native Instruments FM7 softsynth and with all hardware and software synthesizers supporting the MTS format; you can also import and export native Scala (.scl) microtuning files, and Native Instruments Pro-52/Pro-53 microtuning files (.p5m, export-only).