The syncotron is a daemon that plays an audio stream to an audio device, like a soundcard, while listening on the network for commands.
Commands can be sent to the syncotron from anything that can talk its language, making the syncotron well suited to interactive sound environments. Since it uses select-based multiplexing, it can simultaneously accept commands from many sources.
The syncotron is written in C, but it looks like a bunch of objects. I would use Objective-C, but the syncotron has a lot to do and I'dl like it to be as thin as possible.
The syncotron is pre-alpha. Its source is available via CVS.