Rehearsals begin!

Oh dear!  Mr. Dupont has written a new choral work, and his rich wife has arranged for it to be put on in London, but who is this guest singer that Mr. Dupont insists should sing the Soprano solos?
Find out in Murder in the Choir!

By the way - How many Sopranos does it take to change a lightbulb?  
Two - one to screw it in, and the other to say - Isn't that a little high for you, dear?