The term PART OF SATB refers to the four vocal parts of a choral ensemble. The TENOR part is typically sung by male voices and is the highest male voice, usually singing in the range of C3 to A4. The ALTO part is typically sung by female voices and is the lowest female voice, usually singing in the range of G3 to E5. Both the TENOR and ALTO parts are essential components of the SATB (soprano, ALTO, TENOR, bass) choral ensemble.