1) Alto 2) Choirboy 1) Cathedral singer 2) Choirboy 3) Hymn harmonizer 4) Hymnbook scrutinizer 5) Hymnbook studier 6) One of the Vienna boys 7) Singer 8) Vocaliser 9) Vocalist 10) Vocalizer 
• (n.) One who leads a choir in church music. • (n.) One of a choir; a singer in a chorus.
Chor'is·ter noun [ See Chorus .] 1. One of a choir; a singer in a chorus. Dryden. 2. One who leads a choir in church music. [ U. S.]
[n] - a singer in a choir
noun a singer in a choir
a singer in a choir. · a choirboy. · a choir leader.