inspired by her jealousy, the sensuous character of the love duet "Qual'occhio" provides what opera writer Burton Fisher describes as "an almost erotic lyricism that has been called pornophony". The brief scene in which the sacristan returns with the choristers to celebrate Napoleon's supposed defeat provides almost the last carefree moments in the opera; after the entrance of Scarpia to his menacing theme, the mood becomes sombre, then steadily darker. As the police chief interrogates the sacristan, the "fugitive" motif recurs three more times, each time more emphatically, signalling Scarpia's success in his investigation. In Scarpia's exchanges with Tosca the sound of tolling bells, interwoven with the orchestra, creates an almost religious atmosphere, for which Puccini draws on music from his then unpublished Mass of 1880. The final scene in the act is a juxtaposition of the sacred and the profane, as Scarpia's lustful reverie is sung alongside the swelling Te Deum chorus. He joins with the chorus in the final statement "Te aeternum Patrem omnis terra veneratur" ("Everlasting Father, all the earth worships thee"), before the act ends with a thunderous restatement of the Scarpia motif.Newman, p. 221 Act 2 In the second act of Tosca, according to Newman, Puccini rises to his greatest height as a master of the musical macabre. The act begins quietly, with Scarpia musing on the forthcoming downfall of Angelotti and Cavaradossi, while in the background a gavotte is played in a distant quarter of the Farnese Palace. For this music Puccini adapted a fifteen-year-old student exercise by his late brother, Michele, stating that in this way his brother could live again through him. In the dialogue with Spoletta, the "torture" motif—an "ideogram of suffering", according to Budden—is heard for the first time as a foretaste of what is to come.Budden, p. 212 As Cavaradossi is brought in for interrogation, Tosca's voice is heard with the offstage chorus singing a cantata, "[its] suave strains contrast[ing] dramatically with the increasing tension and ever-darkening colour of the stage action". The cantata is most likely the Cantata a Giove, in the literature referred to as a lost work of Puccini's from 1897. Osborne describes the scenes that follow—Cavaradossi's interrogation, his torture, Scarpia's sadistic tormenting of Tosca—as Puccini's musical equivalent of grand guignol to which Cavaradossi's brief "Vittoria! Vittoria!" on the news of Napoleon's victory gives only partial relief. Scarpia's aria "Già, mi dicon venal" ("Yes, they say