Please vote for this feature so we can get it some attention from the devs
http://www.hydlaaplaza.com/flyspray/index.php?do=details&task_id=6611
The ability to have musicians play music in sync together in a group.
At best right now it is difficult to get even a trio playing in sync and it usually takes about 10 tries because of lag. this would eliminate this and make concerts practical.