An implementation of the OpenSoundControl protocol. OSC is a networking protocol
used "for communication among computers, sound synthesizers, and other multimedia devices"
OSC is commonly used in; realtime music software, as well as some graphics toolkits and vj software.
more information can be found at the cnmat site, or in the git repo.
A currently maintained fork with additional features is available here.
ASDF-install package (obsolete) http://qfwfq.info/asdf/osc/osc.tar.gz