Yeah I hear you on that one. Was impressed the other day with @benleemusic & his live jam sessions with friends!
Up until now I have been doing live and spontaneous group guided meditations I call Evolutionary Dreamscape Guided Journeys. Using visualisations, storyline etc combined with powerful music tracks (from Society (Eddie Veddar) to binaural beats and more classical spiritual tracks, it is more akin to a shamanic journey to process and unlock unconscious blocks getting in the way of releasing our potential into our daily lives.
I have actually been intending on getting together with a few musician friends to create a series of recordings that will be available online, but it has not yet reached the top of the priority list at the moment! Your comment has just bumped it up close though. ;) haha