Marble machine!

Martin Molin, a Swedish musician, spent over a year creating this music box that operates on 2,000 marbles!

Danny Lewis for the Smithsonian writes, “The Wintergartan Marble Machine works by sending thousands of steel marbles around a circuit, albeit an enormously complex one. As Molin turns a crank, the marbles begin to roll down chutes leading them to different keys on a vibraphone. That’s not the only instrument built into the machine, though. By flipping different switches, Molin can open new channels to a kick drum, a cymbal and even an electric bass, depending on what elements he wants to add into the mix…”

The Wintergarten Machine
The Wintergarten Machine