Vox Maris

The Vox Maris (Latin: "Voice of the Sea") is an instrument that was built for the Yeosu Expo 2012 in Korea by the German organ building company Hey Orgelbau (Hey Orgelbau) and was recognized as the acoustic signet of the exposition. It combines elements of the pipe organ and the steam whistle. The Vox Maris entwines itself around the twin sky towers at a height of 72 metres (236 ft). It is considered an aerophone, since its dynamic high pressure organ pipes are powered by air. It can be played from a wireless tablet-pc.

The construction process was documented by a film team of German Bavarian Television.