Belated thanks to Noreen for answering my supplementary question about the putative Mudcat-specificity of "Mondegreen". I took your advice and GOT BACK TO WORK, and lost sight of this thread. Now I'm Mudcatting again as a way of (not) coping with post-holiday stress disorder.

But I still have my doubts. Surely lady Mondegreen was a member of the Scottish branch of that well-known Italian musical family, the Monteverdis?