 A few tenor roles in the standard repertoire call for a "tenor C" (C5, one octave above middle C).Some, if not all, of the few top Cs in the standard operatic repertoire are either optional—such as in "Che gelida manina" in Puccini's "La bohème"—or interpolated (added) by tradition, such as in "Di quella pira" from Verdi's "Il trovatore"); however, the highest demanded note in the standard tenor operatic repertoire is D5, found in "Mes amis, écoutez l'histoire" from Adolphe Adam's "Le postillon de Lonjumeau" and "" from Fromental Halévy's "La Juive").In the "leggero" repertoire, the highest note is F5 (Arturo in "Credeasi, misera" from Bellini's "I puritani"), therefore, very few tenors have this role in their repertoire without transposition (given the raising of concert pitch since its composition), or resorting to falsetto.