Bill, at the SFFMC New Years camp a couple years back, I sang "Beulah land" for the first time, and I wasn't sure I could remember quite how all of it went. So, before I started, I turned to Lani Hermann and said, "If you see me falter, help me out, please."
To my surprise, instead of joining me on the song, she broke into the Eberhard mouth trumpet part immediately, and pretty soon we had a whole band, AND a tamborine going.
Blessings,
Barbara