Arvo Pärt is an Estonian composer whose music I've just recently discovered, when I heard his "
Cantus (In Memory Of Benjamin Britten)" played on the radio late one night several weeks ago. His music is gorgeous, and some of it reminds me a little bit of Eno's ambient works, but with much stronger composition.
→[More:] I picked up a couple of his CDs, and now I'm totally in love with another of his pieces, called "
Spiegel im Spiegel" (means "Mirror In Mirror"). Played on piano and violin, I think it's utterly hypnotic.
The album
Alina contains 3 versions of "Spiegel im Spiegel" (the first one is my favorite, though) and 2 versions of another piano piece, "Für Alina," another piano work. You can find all of them
here (or via the previous two links).