seeking opinions: quality choral music from soundtracks

Hi,

I'm hoping to tap into the knowledge and opinions of the regular users
of this site . . .

I'm looking for songs/music, preferably from the art music realm (so,
composers like Bach, Mozart, Beethoven, Brahms, etc.) that were
performed by choirs for movie soundtracks. Ideally, the choir would be
a capella (voices only).

All thoughts and opinions very much appreciated . . .

-Lara

laragreene, September 22, 2014; 6:27 AM