Wintergatan (Swedish pronunciation: [ˈvɪ̂nːtɛrˌɡɑːtan], “the Milky Way”, lit. '”the Winter Street”‘) is a Swedish folktronica band from Gothenburg. Two of their members—Martin Molin and Marcus Sjöberg.

Between December 2014 and March 2016, the band uploaded several YouTube videos featuring Martin Molin documenting the construction of a music box that uses marbles to play instruments. The machine is powered by a hand-crank, and works by raising steel marbles through the machine into multiple feeder tubes, where they are then released from height via programmable release gates, each marble falling and striking a musical instrument below.