Alto rep Chris has very helpfully found some handy follow-the-music videos on YouTube to help with learning our music this term.
Have a listen and sing along!
The resources are by Chord Perfect. However, enthusiastic learners will have discovered that they don’t cover the whole piece — in particular the tricky Cum Sancto Spiritus is missing. But you can get an audio-only version of this from here. (You can get all the parts by paying $4.99, which seems like a pretty good bargain.)