Develops Impromptu, an OSX programming environment for composers, sound artists, VJ's and graphic artists with an interest in live or interactive programming. Impromptu is a Scheme language environment, a member of the Lisp family of languages. Developped by

Hardotheque is a FileMaker-based CD management database for audiophiles of any genre. This program can store information related to albums, artists, concerts, labels, producers, lyrics, and more. Hardotheque even prints out tape and CD labels, including track information and user-specific comments.

SoundTrax is a Mac OSX MultiTrack Recording software build for the Griffin iMic.

Independent music professional working mainly as a mixing, mastering and audio restoration engineer. Mathijs also is the digital audio product support engineer of Joystick Audio and a moderator at the online pro audio forum Gearslutz.com using the nickname DrDeltaM. He has recently started to develop plug-ins

Free VST instruments

Andrew Garber's develops software including MD Machine Drums and Warp Drive AU

Pro Tools utilities

A professional monophonic stereo software synthesizer running in real time, complete with oscillators, filters, envelopes....Free :o))

Developper of Coaster : freeware Direct-to-Disk Audio Recording Software for PowerMac computers.

GTuner : a shareware guitar tuner