Tosca and Scarpia
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Puccini's Tosca: a beginner's guide

7. Tosca and Scarpia
Tosca arrives (again - why's she hanging about in the chapel so much?), only to find Scarpia there. He, being quite the nasty fellow, suggests that her boyfriend is actually in love with the woman in the painting, and she runs off to confront him. Craftily, Scarpia's men follow her to get to Cavaradossi and Angelotti.