But the form of art that was most commonly cultivated by the men of this time was music. There is an epitaph of Vienne to one Nicias a citharoedus,[1309] and another of Nemausum to Avidius Secundus, a maker of musical instruments (musicarius).[1310] Gaul had inherited all the musical devices and appliances of Rome, and like Rome had used them chiefly for frivolous pleasures. But Sidonius notes that Theodoric II cared only for serious music. Hydraulic organs and dancing girls he dispensed with.[1311] Still more did the Christians dispense with such things. But if they would not and could not develop the instrumental side, they certainly made a speciality of singing. There is a doubtful but interesting legend which says that when the Empress Justina threatened to deliver the basilica of Milan to the Arians, Ambrose and his congregation spent a day and a night in the building. To pass the time he introduced hymn-tunes, already adopted by the Eastern Church. Augustine testifies to the impression which these hymns made on him at Milan. They were the means of bringing the truth home to him. ‘Quantum flevi in hymnis et cantibus tuis, suave sonantis ecclesiae tuae vocibus commotus acriter! Voces illae influebant auribus meis et eliquabatur veritas in cor meum, et exaestuabat inde affectus pietatis, et currebant lacrimae, et bene mihi erat cum eis.’[1312] He had doubts at first as to the propriety of such sense-seducing music, but his scruples did not long survive. He himself showed considerable interest in the art and wrote six books De Musica in a didactic strain.
Nor was the interest confined to him. Everywhere in the Christian schools choristers were trained. Jerome speaks of hymn-singing or chants in the schools, where the little ones sing of Pharaoh’s disaster in the Red Sea and the triumph of the just.[1313] Claudianus Mamertus trained a choir for his brother, the Bishop of Vienne[1314] (instructas docuit sonare classes). Antiphonal singing (i.e. the older practice of the alternate singing of psalms) is often mentioned. Sidonius speaks of the monks and priests who chant psalms with alternating sweetness,[1315] and we have seen how Caesarius, when he became bishop, made his congregation sing in this way. In the clerical training singing came to be very important. It was forbidden by Gregory to take orders without it. Columban complains of the harsh discipline which accompanied it.[1316]
The beginnings of hymn-singing in this period have a particular interest for Gaul because they are connected with Hilary of Poitiers. We have Jerome’s statement ‘Hilarius in hymnorum carmine Gallos indociles vocat’,[1317] which seems to mean more than the remark he makes elsewhere[1318] that among the works of Hilary was Liber hymnorum et mysteriorum. For it suggests that Hilary tried to introduce hymn-singing into Gaul and did not meet with great success. This is supported by the definite statement of Isidore of Seville ‘Hymnorum carmine (Hilarius) floruit primus’.[1319] With Ambrose, Hilary shares the distinction of being a pioneer in this department. So important was their work that the Fourth Council of Toledo (633) in its Thirteenth Canon referred to their hymns (‘quos beatissimi doctores Hilarius atque Ambrosius ediderunt’). These hymns were regarded as having a sort of direct spiritual influence which effected the routing of a personal devil[1320]—a conception which appears throughout the Middle Ages and in Faust. But they had their value for literature as well. Apart from the beauty of some of Ambrose’s hymns, the metres which they popularized formed a point from which the development of specifically modern metres can be traced. The influence of these hymns which the mass of the people, unprejudiced by an elaborate training in classical metres, daily heard and sang, must have been enormous in forming a public opinion on the technique of poetry. For there are few things that grip the popular imagination more than tunes of this kind.
Bulaeus[1321] states that Nicetius, Bishop of Lyons in the latter half of the sixth century, was the first to introduce hymn-singing into the church at Lyons. He refers to the epitaph which we find in the Bollandist records:[1322]
Psallere praecepit, normamque tenere canendi
primus et alterutrum tendere voce chorum.
But the reference of Sidonius, quoted above,[1323] to the choir-singing in the church of Lyons in the fifth century, makes it probable that what is here referred to is either a revival of the old part-singing which had become usual in Hilary’s time, or else some specialized form of chant which was slightly different from the ordinary style. In any case we may safely conclude that Gaul played no unimportant part in the development of church-singing during the fourth century.