Words by Hal David, music by Burt Bacharach, NOT from a musical but was sung by B.J. Thomas in the movie "Butch Cassidy and the Sundance Kid," in 1969. I did this arrangement from the Dealer's Choice in 1974. I think we sang it about three times. Easy shuffle / swing, for men, of course. Should be sung more - captures the easy feeling of the song.