KAGURA for PerC - Your dance creates music and graphics - by SHIKUMI DESIGN

SHIKUMI DESIGNの中村氏が”KAGURA”で奏でる不思議な音楽とARと映像の世界。上下左右の手の動きだけではなく、深さ(距離)をとても上手に表現している。ラスベガス(Las Vegas)で開催中のCES 2014でも素晴らしいパフォーマンスを見せてくれたようだ。

This App is new a musial instrument. There are some round graphics that have sound (named SOUND BALL) and square ones (named SOUND AREA) in the screen. The App detects user's motion by using interframe differences. And if the motion is in the graphic, the App plays the sound on timing of BGM's tempo. SOUND BALL has one sound, and SOUND AREA has some sounds with a scale or music loop. So the user can play music by their motion.

(via and more YouTube bySHIKUMIDESIGN)