Baroque flautist Anne Charrier, baritone Ben Kasez, and their team fo volunteers used the Neue Bach-Ausgabe to hand-catalogue J. S. Bach cantatas, passions, masses, motets, oratorios, and the Magnificat to create useful tool for concert planning. You can browse the large catalogue, which includes 2,409 movements, by instrumentation or text.
The service is free, but donations are accepted, as high-quality editions of vocal music and requests for additions to the catalogue.
Check out the Vocal Music Instrumentation Index here.