This brief paraphrase of the Kyrie is sung to the tune for “My Shepherd Will Supply My Need” (Tune name: Rresignation). It’s done as a call-and-response. The cantor sings the first half of each line. The congregation responds with “Have mercy, Christ, on us” or “Amen, Lord Christ, amen” as the second half of each line. Like many early American tunes, once you’ve learned the first line, you have learned 3/4 of the whole tune, so it’s very easy to do!