What type of voices comprise a standard SATB chorus?

A standard SATB chorus is composed of four distinct vocal parts: Soprano, Alto, Tenor, and Bass. This classification of voices is fundamental in choral music and allows for a rich harmonic texture that can be created through the blending of these different vocal ranges.

The Soprano part typically carries the melody and is often sung by the highest female voices, while the Alto part consists of lower female voices. The Tenor part represents the higher male voices and usually provides harmony above the bass, which consists of the lowest male voices. Each voice type plays a crucial role in the overall sound of the choir, contributing to the depth and emotional impact of the music.

In contrast, other options introduce incorrect combinations of voice types that do not conform to the standard SATB structure. For example, Baritone is not included in the SATB designation, as it represents a different middle-range male voice typically found in choral works but not designated in the SATB format. Similarly, terms like "Base" or variations like "Mezzo" add further confusion, as they do not align with the standard definitions used in choral arrangements.