Kronos Quartet
"Performs Philip Glass" (CD)

I forgot to mention another Nonesuch artist: the Kronos Quartet, responsible for some of the last 25 years' most important chamber music performances and commissions.

This CD is a collection of four of Philip Glass' string quartets. (Nos. 2-5)

Glass is an American master of minimalism and, if you're able to palette the flavor, writes some beautiful quartet music.
The Kronos' performance is still lush and warm despite the calculated music.