One of the things that makes living in the big city so interesting, is the eternal presence of talented singers, musicians, and street performers. Whether you’re in New York, LA, London, Paris, or anywhere else, your ears are often treated to dulcet tones as your make your way to your destination.

These particularly melodious notes are produced by a Hang, which is a type of musical instrument developed by two Swiss nationals in Bern, Switzerland. While it looks and sounds exotic, it’s a relatively recent invention. The first one was developed in the year 2000. It’s impossible to play a wrong note with just a bit of practice, and so this instruments popularity has soared since it was introduced.