Err... I'm not quite sure I follow you. Do you mean the music from the soundtracks? Those you can find lots of places, on the net and in music stores that have movie music sections. There may even be some places on the 'net where you can (legally) download them for free, though I'm not certain of that. So best just do a search for "Star Wars Soundtracks", and you should have plenty of options.
And, aside from that... hello, and welcome to the Chronicles....