I saw Flanders and Swann on Broadway in the mid-60s -- I think it may have been the night they introduced "Twenty Tons of TNT." Certainly no one in the audience had heard it before. This was mid-60s, when war protest was still a dangerous business -- it got me blacklisted. When the song was finished, half the audience gave them a standing ovation, half (probably a little more than half) sat on their hands in stony silence.