contrOSC is a middleware to bridge hardware DAW midicontrollers to OSC (Open Sound Control) enabled software like PD, CSound or SuperCollider, so you can easily create patches which communicates with the devices. The first implemented one is the C4 by MACKIE (tm).
The free open source application is created by Malte Steiner and available at Sourceforge under a GPL 3 license:

controsc.sourceforge.net

Demopatches for CSound and PD are included.

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