There is one composer that must be included in any discussion of opera
and that is Jacques Offenbach. Offenbach's birthname was Jakob
Wiener. I think I would change my name too if it was Wiener.
I know that you have heard his racy "Can-Can". I would
pick up the DG recording of overtures and if you find that you like
them, then the obvious choice is to purchase Ms. Otter singing various
songs from Offenbach's works. This is truly delightful and
fun. My two personal favorites are the "Alphabet - S.A.D.E" and
portrayal of the quite tipsy Mademoiselle from "La Perichole".
Great stuff and fun too! I recommend that you read the liner
notes and libretto as they will give you background into what is going
on. Suffice to say that sometimes it takes but one pretty woman
a group of men into one great confused mess.