Contralto

Contralto is the deepest female classical singing voice, with the lowest tessitura, falling between tenor and mezzo-soprano. It typically ranges between the F below middle C (F₃ in scientific pitch notation) to the second G above middle C (G₅), although at the extremes some voices can reach the E below middle C (E₃) or the second B♭ above middle C (B♭₅).