Nice trip down Memory Lane --
How I loved the Mad "Comic Opera" and other spoofs back in the 60s!
My mother was a teacher of English Literature then.
Her stock with the students went up 200% one day.
She arrived in class with Mad magazines and read several parodies --
spoofs of Longfellow, Whitman, even Chaucer! --
and proceeded to discuss why they were so funny.
(The assigned homework that night was an original parody.)
I'm still writing parodies, possibly inspired by Mad's examples.
Great fun!