For Opera Fans (... or not)

[nuranar]

Tuppy:   Guess what! I'm going to the opera tonight.
Bertie:   Opera, Tuppy?
Tuppy:   Cora's singing in the, um, Barber of Figaro.
Bertie:   Is that the one about the pyramids?
Barmy:   Sounds like it is, from the name.