The purpose of this study is to make the Protestant church workers more efficient in their use of music in religious work by giving them a clear conception of the kind of music to be used and by suggesting detailed plans and methods by which desirable results may be secured in the use of church music. Ideal standards have their place, but here it is proposed to be matter-of-fact, practical and concrete, and to secure immediate results with the average church member and choir singer as the final criterion in every phase of the work. The purpose is not to emphasize high ideals but to instruct and inspire all those who have leadership in the service of church music, that they may be able here to provide the greatest religious helpfulness that the use of music can bring the souls to whom they minister.