I went to church at the Newman Center at Kent State University (yes, THAT Kent State!) in the '70s. The music director there was...knowledgeable. Once after communion he and the group played "Jeremiah Was A Bullfrog" for the post-communion meditation hymn. We also did "Rainbow Children" and other "Billy Jack" songs, PP&M stuff, and in general had a good time. He'd divide the church into thirds and do rounds, and he was writing a Mass for his master's in music.

Best church music I ever heard/participated in. Even so, I don't think you can beat "Dies Irae" for a nice, upbeat beginning to a requiem mass.