The music of the earliest Christian church as evolved from contemporary practices and systems; the alliance of the Roman liturgy with music; the _Schola Cantorum_--St. Ambrose and liturgical music; his hymns; Gregory the Great and his reforms; the Gregorian antiphonary; sequences and tropes--Progress in musical methods in the northern countries; Hucbald and _organum_; Guido of Arezzo; Franco of Cologne and measured music; growth of part-singing--Early secular music; the Troubadours and Trouvères; Adam de la Hâle; the Minnesingers and the Mastersingers; mediæval secular forms; The early madrigal and its precursors, the _chanson_ and _frottola_; ‘Sumer is icumen in’; relation of folk-music to art-music. II. THE POLYPHONIC PERIOD 36 The Gallo-Belgic School; the Netherlanders; the mass and its liturgical significance; the use of secular subjects--Conditions that fostered continuity of development: the ‘Mass of Tournay’; Dufay and Okeghem; Hobrecht’s _Parce Domine_; Josquin des Près’ masses and motets; his expressive style--The motet as an extra-liturgical form; its development; its later characteristic style; distinction between sacred and secular music--Orlando di Lasso’s ‘Penitential Psalms’; his tendency toward a simpler style; his _Gustate et Videte_ and other compositions--Palestrina’s reforms, methods, and style; his masses, _Papæ Marcelli_, _Brevis_, and _Assumpta est Maria_; his motets and other compositions: Vittoria and others--Madrigal writers of the sixteenth century: Festa, Arcadelt, Willaert, Byrd, Morley, etc. III. THE FIRST CENTURY OF PROTESTANT CHURCH MUSIC 76 Martin Luther; the chorale as the nucleus of German Protestant church music--Early Reformation composers: Walther, Eccard, Prætorius; influence of church choir schools in Germany during the Reformation period--English Protestant music, music of the Anglican liturgy: the anthem, its early history and style--The spread of congregational song; psalms and hymns. PART II. THE CANTATA AND OTHER SHORT FORMS IV. THE EARLY ITALIAN SECULAR CANTATA, THE GERMAN CLASSICAL CANTATA, THE ENGLISH ANTHEM, AND OTHER SHORT CHORAL FORMS 99