Contralto
Low-pitched female singing voice
A contralto (Italian pronunciation: [konˈtralto]) (sometimes alto) is a classical female singing voice whose vocal range is the lowest of such voice types. The contralto voice type is fairly rare. A contralto's range is similar to that of a mezzo-soprano, and almost identical to that of a countertenor – typically from the F below middle C (F3 in scientific pitch notation) to the second F above middle C (F5), although, at the extremes, some voices can reach the D below middle C (D3) or the second B♭ above middle C (B♭5).
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