Charles Cohen improvising on a Buchla Music Easel
(via Music Thing)
(via Joel's Blog)

I might post a full review when I've had chance to play with it.
More info here.
The large crater is a result of a Soviet gas exploration accident in the 1950’s. It was created when a Soviet drilling rig was drilling for natural gas fell into an underground cavern resulting in a crater which today measures roughly 60 meters in diameter and 20 meters deep. The huge crater was set alight shortly after being discovered and has been burning ever sense.