Illposed Software is a distributed collective of programmers focused on multimedia applications and dedicated to applying 'pataphysical insights and methodologies to the practice of software development.

VST Plugins

Jean-Louis Valero makes LoopyLoop, a shareware multimedia reader.

Software by Daniel Wedjesjö for music production and sound design

Cecilia is a graphic user interface for the sound synthesis software csound. There are now MacOS X installer packages for it.

Whamb is a Digital Audio Player for Mac OS X

Open-source audio software by Jesse Chappell

Macintosh software developer (Rondo, MIDI player...)

Generative music and free Java beat generator

Developer of Wave Rider, a virtual fader controller plugin for Digidesign Pro Tools®