This Ludicrous New Instrument Makes Music with 2,000 MarblesSwedish musician Martin Molin has long had experience with esoteric instruments like the glockenspiel, traktofon, or Theremin, but he may have topped his musical prowess with the invention of his own new instrument: the Wintergatan Marble Machine, a hand-cranked music box loaded with instruments including a circuit of 2,000 cascading steel marbles. As the devices cycles it activates a vibraphone,
