Thanks. I have a disk of Arvo Pärt that I picked up after seeing a live performance of one of the pieces. Can't remember what's on the disk, but the piece I saw live involved prepared piano, as I recall. It was quite beautiful, and I like the other piece on the CD too. So that's a useful comparison for me. (Ah, googling leads me to believe the piece I saw live was Tabula Rasa. The other piece on the CD might be the Te Deum.)