This music foreshadowed the completer expression of Christian art of which it became the type. Inspired by the grandest of traditions, provided with credentials as, on equal terms with poetry, valid in the expression of man’s consciousness of his needs and his infinite privilege,—thus consecrated for its future mission, the soul of music passed from Hebrew priests to apostles and Christian fathers, and so on to the saints and hierarchs, who laid the foundation of the sublime structure of the worship music of a later day. CHAPTER II RITUAL AND SONG IN THE EARLY CHRISTIAN CHURCH A.D. 50-600 The epoch of the apostles and their immediate successors is that around which the most vigorous controversies have been waged ever since modern criticism recognized the supreme importance of that epoch in the history of doctrine and ecclesiastical government. Hardly a form of belief or polity but has sought to obtain its sanction from the teaching and usages of those churches that received their systems most directly from the personal disciples of the Founder. A curiosity less productive of contention, but hardly less persistent, attaches to the forms and methods of worship practised by the Christian congregations. The rise of liturgies, rites, and ceremonies, the origin and use of hymns, the foundation of the liturgical chant, the degree of participation enjoyed by the laity in the offices of praise and prayer,—these and many other closely related subjects of inquiry possess far more than an antiquarian interest; they are bound up with the history of that remarkable transition from the homogenous, more democratic system of the apostolic age, to the hierarchical organization which became matured and consolidated under the Western popes and Eastern patriarchs. Associated with this administrative development and related in its causes, an elaborate system of rites and ceremonies arose, partly an evolution from within, partly an inheritance of ancient habits and predispositions, which at last became formulated into unvarying types of devotional expression. Music participated in this ritualistic movement; it rapidly became liturgical and clerical, the laity ceased to share in the worship of song and resigned this office to a chorus drawn from the minor clergy, and a highly organized body of chants, applied to every moment of the service, became almost the entire substance of worship music, and remained so for a thousand years.