Having already written

Mr William Barrington Coupe
Has landed himself in the soup
 By providing his Joyce
 With a spurious voice
To ensure that he'd all of us dupe

I could not, in all conscience (yes, in spite of being a living composer, I do actually possess one!) do other than defer to your infinitely more elegant and pointed

The critics' acclaim for Joyce Hatto
Had reached an impossible plateau,
  But her falling from grace
  Was quite clearly a case
Of her spouse over-egging the gateau.

although I have to confess that the over-egging bit rather reminded me of a remark made (in a context that now entirely escapes me) during the recording sessions for my string quintet along the lines of the old cliché to the effect that one cannot make an omelette without breaking eggs, to which my response about the need (in my case) to remove the last three words thereof drew, from one of those present, a most pointedly down-the-nose look that I have never forgotten (and, whilst I won't name names, I'll admit that I well and truly deserved such a response!)...

Though Matthewselah lived 900 years
Neither David nor Colin appears...

(go on - I challenge  - or rather invite[!] - you to fill in the blanks here)...