Lux Aeterna, by György Ligeti, performed by Cambridge Clare College Choir, conducted by Timothy Brown. From the album Illumina (1999). OK, I admit I’m kind of going out on the outer edge with this one.
This piece was in the soundtrack for Kubrick’s 2001: A Space Odyssey. Our faithful Wikipedia informs us that the words are from the Reqiuem Mass:
Lux aeterna luceat eis, Domine, cum sanctis tuis in aeternum, quia pius es. Requiem aeternam dona eis, Domine.
(May everlasting light shine upon them, O Lord, with thy saints in eternity, for thou art merciful. Grant them eternal rest, O Lord, and may everlasting light shine upon them.)