You already know I love Mendelssohn’s motets. His Sechs Sprüche for various occasions in the liturgical calendar are short pieces for 8-part choir. I love them for lots of reasons, not least the recurrent use of my second-favorite German word “frohlocken.” (My very favorite is “Wonne”. I know you were wondering.) This video has good notes, with translations and links to the other five (of which my very favorite is Am Neujahrstage, in case you were wondering).