A "rāga" is not a tune, because the same "rāga" can yield an infinite number of tunes. A "rāga" is not a scale, because many "rāgas" can be based on the same scale. A "rāga", according to Bruno Nettl and other music scholars, is a concept similar to a mode, something between the domains of tune and scale, and it is best conceptualized as a "unique array of melodic features, mapped to and organized for a unique aesthetic sentiment in the listener". The goal of a "rāga" and its artist is to create "rasa" (essence, feeling, atmosphere) with music, as classical Indian dance does with performance arts. In the Indian tradition, classical dances are performed with music set to various "rāgas".