Hear music history from Beethoven to rock.
Voice or register that extends approximately from the F below middle C to the second D above it. The second-highest part in four-part music, it is normally sung by women. The name derives from , the part above the tenor part. It is used for some instruments that play principally in the alto range (alto saxophone, alto flute, etc.). See also countertenor.
Find more information on alto. Upgrade to Britannica Online for more on alto.