Saw last night an Aussie ABC documentary story about the 3D-FM session on the front veranda called The Hillbilly Hoot. They allegedly play for a 1 hour live to air radio show. You just turn up, like a session, and those who want to just join in, but it tends to go on for hours after the 'official' session ends. They are playing for themselves, but the live audience in the front garden, and those on the radio seems to enjoy the atmosphere.