Thank you for the PAINT YER WAGON info, DR Elmore.
This is weird, but as I listened to a few excerpts to whet the appetite, I found myself suddenly transported back to my high school days!
Maybe it's just me, but it seems like those songs ("They Call the Wind Maria", "I Talk to the Trees") were so much more known then -- as, I guess, was the show itself. I would swear that every choral group was singing this music routinely. These songs were part of the musical landscape.
Of course it doesn't help that I haven't kept up with the show, myself, over the years.