<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> In SATB four - part mixed chorus, the alto is the second highest vocal range, above the tenor and bass and below the soprano . The alto range in choral music is approximately from F (the F below middle C) to F (the F in the second octave above middle C). In common usage, alto is used to describe the voice type that typically sings this part, though this is not strictly correct . Alto, like the other three standard modern choral voice classifications (soprano, tenor and bass) was originally intended to describe a part within a homophonic or polyphonic texture, rather than an individual voice type; neither are the terms alto and contralto interchangeable or synonymous, though they are often treated as such . Although some women who sing alto in a choir are contraltos, many would be more accurately called mezzo - sopranos (a voice of somewhat higher range and different timbre), and many male countertenors (this latter term is a source of considerable controversy, some authorities preferring the usage of the term "male alto" for those countertenors who use a predominantly falsetto voice production). The contralto voice is a matter of vocal timbre and tessitura as well as range, and a classically trained solo contralto would usually have a range greater than that of a normal choral alto part in both the upper and lower ranges . However, the vocal tessitura of a classically trained contralto would still make these singers more comfortable singing in the lower part of the voice . A choral non-solo contralto may also have a low range down to D (thus perhaps finding it easier to sing the choral tenor part), but some would have difficulty singing above E. In a choral context mezzo - sopranos and contraltos might sing the alto part, together with countertenors, thus having three vocal timbres (and two means of vocal production) singing the same notes . </P> <P> Alto is rarely used to describe a solo voice (except in the case of soloists in choral works), though there is a multitude of terms in common usage in various languages and in different cultures for solo singers in this range . Examples include contralto, countertenor, haute - contre, and tenor altino among others . </P>

What is the vocal range of an alto singer
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