Absolutely. Music has the ability to convey so many emotions and ideas, it's not funny. I once played in the school band and there was one piece that moved me so much that I was able to literally see an entire war campaign play out in my mind. It went right down to the horses galloping into battle, the drawbridge clanking down to welcome them home...everything.
Music has the power to move the mind, stir the soul, and motivate the body. It has got to be an effective tool for our roleplays.