Otherwise, thepiratebay.org has pretty decent torrents, although they dont have ALL (none do anyways) you might be lucky and find the stuff you need there. 

If you can spare $14 bucks a month (totally worth it) sign up for rhapsody to-go service! I currently use it, and you can download whatever tracks/albums to your NON-IPOD mp3 (should support DRMs) and you're good to go. Like i said, the $14 is totally worth it if you can pay for it.

Or if you looking for a cheaper service, I've subscribed to Yahoo Music Engine and i think it was $6 a month which isnt bad. They've got a good database as well.

Other sites that offer free streaming music:

Gooveshark.com - They've got a really good collection and an intuitive interface. Try these guys.

Imeem.com - Not too bad, I dont like the interface.

Deezer.com - Used this excessively in the past, but now grooveshark is better (imo)

To download music from these sites, you gotta go through a couple of hacks, you can find em on google. 

If you use pandora radio, google pandora's jar. If you looking for nepali songs, nepaligana.com has it, but u gotta download 1 by 1. Email me to get their entire database of songs in 1 file :)