MANUDUCTOR

( Lat. ,) in the ancient Christian Church, was an officer, who, from the middle of the choir, where he was placed, gave the signal to the choristers to sing, marked the measure, beat the time, and regulated the music. He was so called, because he led or guided the choir by the motions and gesture of the hand. The Greeks called the same kind of officer Mesochoros , because he was seated in the middle of the choir.