The Otamatone created by Japanese performance artist Maywa Denki is a cleverly designed electronic instrument in the shape of a musical note with a cute face. To play the Otamatone requires no musical experience and is so easy to create some fun tunes. The stem is where you select your pitch. To change the pitch of the tune, just slide your fingers up and down the stem. Squeeze the cheeks of its face makes its mouth open to produce vibrato. Simple as that!