This is the Wintergarten Marble Machine.
![Marble-Machine](https://peewee.com/wp-content/uploads/Marble-Machine.jpg)
It uses 2000 metal marbles to make music!
![2000 marbles](https://peewee.com/wp-content/uploads/2000-marbles.png)
It’s INCREDIBLE. You HAVE to watch it in action:
In the video, that’s Martin Molin of the Swedish band Wintergatan cranking this cool music machine. He created this amazing marble-filled invention (it took over a year!) and plans to automate it so it can act as an extra musician in the band.
![WMM](https://peewee.com/wp-content/uploads/WMM.jpg)
Has he LOST his MARBLES?! 😉