pre·cen·tor 
(prĭ-sĕntər)
(prĭ-sĕntər)n.
A cleric who directs the choral services of a church or cathedral.
[Latin praecentor, from praecentus, past participle of praecinere, to sing before : prae-, pre- + canere, to sing; see kan- in the Appendix of Indo-European roots.]
pre′cen·tori·al (prē′sĕn-tôrē-əl) adj.