I find that interesting, Jim, because, if I make a mistake in a song during performance [get the words of a line in the wrong order, e.g., so that the rhyme word fails to come at the end] I can generally think on my feet quickly enough to make up another rhyme as a sort of patch as I'm singing; generally nobody notices. Hadn't realised Ewan did that. I do, though, remember once at the Louise he was trying to sing Blantyre Explosion, but kept starting "As I walked out" & then stopping & looking blank & saying to Peggy "What is the rest of the line?" & she shrugged — till in the end, without wanting to be officious, I could stand it no more & called out "By Clyde's bonny banks"; & he smiled gratefully & said "That's it" & launched into the song.