The preformance won't be for a while. We also have to do Mass in G by Franz Schubert, and the opera will be performed after that.

And…

I can tell undoubted Raphaels from Gerard Downs and Zoffanies,
I know the croaking chorus from The Frogs of Aristophanes,
And I can hum the fuge of which I've heard the music's din afore,
And whistle all the aires from that infernal nonsense Pinafore!