It was surprising to hear music during my first class, but I've grown to like the background soundtrack. During challenging poses, the upbeat music helps motivate me to not quit, and during Savasana, I find that I am able to zone out and let go in a way that I wasn't able to do in the dark and silence. My opinion is definitely not universal. Several friends and colleagues feel that when music is playing during their yoga practice it's distracting and takes away from the focus on breath and inward reflection. As one person put it, "I go to yoga to get away from all the noise and chatter from the outside world." Still, the yoga-music combo persists, perhaps best typified by the growing trend of yoga nightclubs.