1) Leader of a musical group 
Man`u·duc'tor noun [ Latin manus the hand + ductor a leader, ducere to lead: confer French manuducteur .] (Mus.) A conductor; an officer in the ancient church who gave the signal for the choir to sing, and who beat time with the hand, and regulated the music. Moo...
A manuductor was an officer in the ancient church who gave the signal for the choir to sing, and who beat time with the hand, and regulated the music.