Known about Mobius Strip Music Machine

The brain-melting idea of the Möbius strip has been used to give details complex, meaningful ideas such as time journey. But this simple, small music box, which uses a knock strip in the shape of a Möbius strip, capacity be my favorite application of the idea.

The music box will play the song once throughout, then plays it over upside-down; make an endless, repeating loop of music. It may not solve the secrets of the universe but hey it appear so cool. Can you be familiar with the upside-down-and-backwards tune