After two years of prototyping, tweaking, and building, Martin Molin of the Swedish band Wintergatan finally debuted his enormous musical marble machine.
The melody is primarily carried by a vibraphone whose bars are hit by falling marbles, but it also includes small percussion and cymbals, as well as a bass guitar neck. It even has a “breakdown” arm, which is a literal brake that kills the instrument’s flywheel — that huge spinning circle that’s primarily responsible for the marble machine keeping time accurately. Maybe most importantly, the song Martin programmed it to play is actually really freaking great.