There is more to the music of a campaign than the volume of singing by the choir, with an occasional solo by the chorister or some chosen person. A variety of ingenious devices are employed to heighten the impression of the music. Thus a common antiphonal effect is obtained by having the choir sing one line of a hymn and the last ten rows of persons in the rear of the Tabernacle sing the answering line. The old hymn "For You I am Praying" is used with electrical effect in this fashion. Part singing is employed in ways that are possible only to such a large chorus as the musical director of the Sunday campaigns has at his command. A genius for mutuality characterizes the Sunday song services. The audiences are given a share in the music. Not only are they requested to join in the singing, but they are permitted to choose their favorite hymns, and frequently the choir is called upon to listen while the audience sings. Various delegations are permitted to sing hymns of their own choice. Diversity, and variety and vim seem to be the objective of the musical part of the program. From half an hour to an hour of this varied music introduces each service. When the evangelist himself is ready to preach, the crowd has been worked up into a glow and fervor that make it receptive to his message. If some stickler for ritual and stateliness objects that these services are entirely too informal, and too much like a political campaign, the partisan of Mr. Sunday will heartily assent. These are great American crowds in their every-day humor. These evangelistic meetings are not regular church services. It has already been made plain that there is no "dim religious light" about the Sunday Tabernacle meetings. It is a tribute to the comprehensiveness of the Sunday method that they bring together the most representative gatherings imaginable every day under the unadorned rafters of the big wooden shell called the Tabernacle. Shrewdly, the evangelist has made sure of the democratic quality of his congregation. He has succeeded in having the gospel sing its way into the affection and interest of every-day folk.