Sea Organ Plays Perpetual Music

Constructed in 2005, the Sea Organ in the Adriatic Sea in Zadar, Croatia was designed by Nikola Bašić to make perpetual music using ocean waves. The acoustic jetty spans 230 feet wide and include 35 polyethylene tubes of varying sizes. When the waves flood each chamber, air is forced out through large tubes tuned to play seven chords of five tones.