Alto recorder

The alto recorder in F, also known as a treble (and, historically, as consort flute and common flute) is a member of the recorder family. Up until the 17th century the alto instrument was normally in G4 instead of F4. Its standard range is F4 to G6.

The alto is between the soprano and tenor in size, and is correspondingly intermediate in pitch. It has the same general shape as a soprano, but is larger in all dimensions, resulting in a lower pitch for a given fingering.