In the first installment of “Where to start,” a new classical music guide for beginners and faithful fans by Globe critics, A.Z. Madonna says you know more opera music than you think you do. Here’s a ...

Ah, the opera. Ladies in magnificently bedazzled gowns. Men in top hats and tails. A scene straight from Wharton's "Age of Innocence." You're curious about the opera, but afraid it's too rich for your ...