SATB

SATB is a frequent initialism for soprano, alto, tenor, bass, referring to a common scoring for choruses and choirs. Pieces written for this combination can either be sung by choruses of mixed genders, or by choirs using a combination of men and boys. SATB can also refer to various types of instrumental ensembles, such as a saxophone quartet, in this case meaning soprano saxophone, alto saxophone, tenor saxophone, baritone saxophone.

Other common variants include SATTB, where the lower 'tenor' is usually pitched as a baritone (so sometimes explicitly written SATBarB), SSATB and SSATTB -- or any other combination of double letters. A piece marked "SATB div." denotes that the individual parts may split at some point, but not significantly enough to consider them a separate part worthy of its own line.

Many non-choral pieces have been written using SATB, mainly fugues including:
*Bach's The Art of Fugue and The Musical Offering

ee also

*Choir