PRECENTOR
choirmaster, precentor, cantor
(noun) the musical director of a choir
Source: WordNet® 3.1
Etymology
Noun
precentor (plural precentors)
The person who leads songs or prayers in a cathedral, church, monastery, or synagogue and generally facilitates worship.
Source: Wiktionary
Pre*cen"tor, n. Etym: [L. praecentor, fr. praecinere to sing before;
prae before + canere to sing. See Chant.]
Definition: A leader of a choir; a directing singer. Specifically:
(a) The leader of the choir in a cathedral; -- called also the
chanter or master of the choir. Hook.
(b) The leader of the congregational singing in Scottish and other
churches.
Source: Webster’s Unabridged Dictionary 1913 Edition