Music director of a Lutheran church, and usually the director of music at a school or institution attached to the church as well. In the past, the duties of the Kantor also included composing and directing sacred music, training the choir, teaching theory of music, and usually other duties concerned with both secular and sacred music.the name used to denote the person leading the singing or chanting in Jewish and early Christian worship. Kantor also denotes the director of music in a German protestant church