CSI: Soundtrack

The compilation includes 16 songs from the show, two of which were composed by John M. Keane. He wrote most of the music for seasons one, and two. (They're instrumentals- Not sure if he wrote any of the music past seasons three and beyond)

Since the soundtrack came out in 2002, there's a good chance it only has music from the first two seasons on it, and not the later seasons. - But there is only 16 tracks, so you won't find all the music from both seasons.