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Casta Diva,
It is followed immediately by "Ah! bello a me ritorna" (Beloved, return unto me), which, being an allegro, contrasts effectively with the long, flowing measures of "Casta diva."
Before this in the opera there has occurred another familiar number, the opening march and chorus of the Druids, "Dell'aura tua profetica" (With thy prophetic oracle).
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There is a fine trio for Norma, Adalgisa, and Pollione, at the end of the first act, "Oh! di qual sei tu vittima" (O, how his art deceived you).
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