Music is sound (and silence). While dance is practically exclusively movement of body parts, music can be created by body parts (mouth, hands, feet, etc.) as well as musical instruments (tabla, harmonium, guitar, etc.). In India, the origin of music, indeed sound itself is traced back to the origin of the universe. According to Hindu mythology, the first ever sound is the Naadbrahma (Brhma as Sound), which pervades the entire universe. It is the purest sound in the universe and is believed to be unstuck. Another myth associates the origin of sound (and dance) with the Tandava of Shiva and Onkar. It is said that sage Narada then introduced the art of music to the earth from heaven.