Noun
A leader of a choir; a directing singer.
The leader of the choir in a cathedral; -- called also the chanter or master of the choir.
The leader of the congregational singing in Scottish and other churches.
Source: Webster's dictionaryIn the absence of the dean and precentor, the chancellor is president of the chapter, and within the cathedral is usually assigned the easternmost stall, on the dean's side of the choir. Source: Internet
Responsories The responsories are similar in form to the antiphons, but come at the end of the psalm, being originally the reply of the choir or congregation to the precentor who recited the psalm. Source: Internet
Most cathedrals have at least three services of worship every day, often taking the form of matins, Holy Communion and an evening service which is often sung by the precentor and choir. Source: Internet