All are very good ideas, Rick pretty much can write the book,
BIMHO...BURY THE BELOVED BLUE BOOK. I really have a problem with the blue book when folks use it as a juke box selection list because they want to "hear" a song Odetta did back in sixty two and think a song circle can immulate Odetta. Sing or select songs that are practicle and familiar.
Avoid five minute disertations explaining what the song is all about, just sing the #@&%#@ song.
I like the advise of all the contributors. It's right on.
Mudjack