Wikipedia
Dropchord
Dropchord is a motion controlled music-based puzzle video game for Windows and OS X using the Leap Motion controller. It was developed and published by Double Fine Productions and financed by Dracogen. The game was one of the first games released on Leap Motion's Airspace app store, when it went live on July 22, 2013. It was also released for Ouya on July 31, 2013, and on Android and iOS on August 1, 2013.