Next weekend (May 10-11), I’ll be singing (alto! the best part!) Missa Solemnis with the Choral Society at Grace Church, one of the most exceptional and highest-quality choirs in the city. (There are still tickets left for our Friday evening and Saturday matinee performances. Please come! I’d love to share it with you!) In preparation for our performance of Beethoven’s complicated, difficult material, our soulful and excellent conductor, John Maclay, shared with us the following, by Maynard...