Many song leaders define their role in the public assembly primarily in mechanical terms.
They believe that they are a success if they correctly pitch each song, correctly beat the hand motions for each song's time signature, and sing with a strong voice. Many song leaders see no other dimensions of song leading that are important. This mechanical self-image has been apparent to those of us who train song leaders. Most students attend a singing song to acquire basic mechanical skills. When they have realized that goal they immediately lose interest in receiving any further training from a singing school.