Hi om_namah_shivay,
music is emotions transformed to sound. Music can be funny, happy, angry, evil, holy, psychodelic, etc. etc. So the problem of music is, that it influences how you feel. If you play different songs of different moods, they will take you through different moods of your own. If you play songs of one… “branch” of moods, that might be ok, yet it might as well influence the moods that want to arise during your practice.
However: I have done all sorts of things during doing an Asana session, inlcuding listening to music, watching TV or monitoring something on the PC. Such sessions are not at all pointless, but they’re more focused on the physical aspects and less “contemplative” as when there is no music and no sound. If you want something to simply overnoise other noises, let me suggest this OM-file by Dharma Mittra:
It’s really just what you hear there in the sample or on his website, so you can actually just open said site and have something to listen to. I had played that literally for hours, even during my sleep.
There are two more tunes by Dharma Mittra:
http://www.amazon.com/
“Hum Sa” is more varied and transports more of an emotion, but generally quite calm too. The name of the first tune might be somewhat an omen for you :-D, unfortunately I can’t buy it where I live, so I only know the excerpt/pre-hear.