I was digging through CPDL today, looking for music for various occasions, and I happened upon this. It's Josquin's very own version of On Eagles' Wings......written for 24 parts! That's correct; four choruses of six voices each. Samples can be heard here.
This piece would be appropriate for Compline, but can you imagine trying to sleep after hearing this? I suppose there are other possibilities. Maybe someone will let us sing it at a funeral sometime...
In any case, good luck finding 24 singers!