Orfeo by Richard Powers: listening project

Now reading Richard Powers' novel Orfeo, in which several works of modern music (none of which I have never heard) are evoked in compelling detail. After I finish the book, I plan to go back and listen to all of them, but for now, here is the one that the characters hear (and don't hear) on  pages 245-255, Steve Reich's "Proverb" :



Proverb (1995)
for voices and ensemble
Ludwig Wittgenstein (E)
3 lyric sopranos, 2 tenors—2 vibraphones—2 keyboards (playing 4 five-octave keyboards)