Buried away on the internet is an absolute treasure trove of choral music. Accessed through a wiki page, the Choral Public Domain Library, which was started in 1998, permits unrestricted downloads of free music. For instance, since we first performed Gounod’s Stabat Mater, using copies photocopied with the permission of the British Library, someone has taken the time to enter the entire score via a music editor to allow choirs to download it for free.
A quick look at Rachmaninov revealed four versions (!) of Bogoroditze Devo, all in nice clear print.
Take a look – and see if you can find a hidden gem for BCS or the BCS Small Choir to sing.