This looks like a lot of fun! – ” Just plug any digital instrument – a MIDI-enabled keyboard, a MIDI-enabled guitar or MIDI-enabled bass, MIDI-enabled drums, or a MIDI-enabled wind-controller — into your PC or Mac computer, fire up the eJamming Station and we’re connecting you over the Internet to a whole world of musicians across town – or across the ocean. In Sync. In Real Time. Or in as close to real time as the laws of physics allow. “ [via] – Link.
The site has a free trial for Macs and PCs. Set this up, get people to play music, send to shoutcast, pump in to a virtual music club, distributed musicians and audience!