Which of the following is NOT a voice classification in choral music?

In choral music, voice classifications are specific categories that help identify the range and timbre of singers. Soprano, baritone, and bass are all established voice classifications.

Soprano refers to the highest female voice type, typically characterized by a bright and light quality that can reach high notes. Baritone is a male voice type with a range that lies between tenor and bass—usually possessing a rich and robust quality. Bass represents the lowest male voice, known for its deep and resonant sound.

In contrast, a violin is not a voice classification. It is a string instrument, distinct from vocal classifications, and does not pertain to choral singing. Understanding these categories is essential for ensemble performance and vocal arrangements in choral music, where singers are grouped by their vocal ranges to create harmonious blends.