Scarpia

Rome's chief of police is no snarling brute. He is an aristocrat who has learned that the surest power is the kind that smiles. I sing Scarpia as a man of taste — a connoisseur of fear who orders torture in the next room and discusses it over wine. The menace must sound like hospitality, and that is the hardest discipline of all.

The Te Deum is the heart of him. As the church fills with procession and the choir lifts its praise, his thoughts climb the other way — lust and blasphemy rising note for note against the liturgy. "Va, Tosca!" he breathes, and devotion and predation become one chord. I have to let the holy music carry the unholy thought without ever breaking the surface of the gentleman.

Then the bargain: her body for Cavaradossi's life, proposed with the calm of a transaction. The part asks for weight and verbal precision in equal measure — a line that can fill the house and a consonant that can draw blood. He dies under Tosca's knife mid-sentence, still certain he has won.