Just thoughts on that impressive poem:

Gertrude, German, wind and mind,
Scene, Melpomene, mankind.
Wind & mind do rhyme, if wind is a verb.
Billet does not rhyme with ballet
Unless billet is from the French (now in English dictionaries) billet doux
Font, front, wont, want, grand, and grant Wont & want sound very similar to me unless he means won't.
Face, but preface, not efface.
Phlegm, phlegmatic, ass, glass, bass
Depends whether you want the lines to rhyme or the words. Is 'bass' a low male voice, or a fish?

And how many actually read that aloud, but still read 'pronunciation' as pronouncitation?

Cheers

Nigel