Does Music really help to change your mood?

This question ..too common to think about, as music can be defined in a million of ways and roll all kinda emotions. Any ordinary or extra ordinary individual with his MusicAlity can get you down on the feet or make you cry or happy. Nobody, of this generation can even bare to listen to the great "Tansen" who actually challenged nature by lighting up lamps, but that music is still respected. Music that mesmerized in early 60's or 70's actually changed the way of absorbing music. i know if we talk on this topic we can just go on and on ...but again does it help in changing the mood..??