as sacred to them as they were to older generations of the children of Israel. Their quarrel was not with the Jews, but with such Jews as refused to recognize their new king. While, therefore, they had every reason for avoiding the music of the Pagan Greeks and Romans, they had no reason whatever for abandoning that which had been handed down to them from David. They certainly took over the texts of the Old Testament psalmody, and it is a natural assumption that with them they adopted the music to which these texts were sung. We may conjecture with some plausibility that the psalmodic solo, responsorial chant, and antiphonal chant--all ancient Hebrew liturgical forms--passed directly from the Temple and Synagogue into the first Christian communities, with such minor changes as may have been necessitated by the new ritual and attendant upon the transference of its conduct from trained cantors to untrained laymen. The psalmodic solo has no special significance in the development of the Christian liturgy. Of more importance is the responsorial chant, which consists of a solo interrupted periodically by the voice of the people.[55] It is very probable that this form of psalmody was in use among the first Christians, though we have no direct evidence on the point. We learn, however, from church historians that psalms were sung in this fashion at Alexandria in the time of Bishop Athanasius in the early part of the fourth century. The antiphonal chant, which is the most interesting and important of liturgical forms, is of extreme antiquity. David, we know, divided the singers of the Temple into two choirs. Whether this form passed directly and without interruption from the Temple and Synagogue into the religious services of the first Christians we have no means of knowing. It was, however, adopted at a very early date by Christian communities in the Orient. Eusebius, bishop of Cesarea (third century) reproduces a text of Philo in which occurs the following description: 'Suddenly all rose on both sides ... and formed two choirs, men and women. Each choir chose its coryphee and soloist ... then they sang to God hymns of different melodies and metres, sometimes together and sometimes answering each other in suitable manner.’ As showing the early expansion of this style of singing throughout the Christian world we may quote from a letter of St. Basil (fourth century) to the inhabitants of Nova Cesarea. 'The people rise in the night,’ he writes, 'and go to the house of prayer; when they have prayed they pass to the psalms. Sometimes they divide into two alternate parts, sometimes a soloist sings and all answer; and having thus passed the night in divers psalms they intone all together, as one voice and one heart, the penitential psalm.... If it is for this reason [the organization of the psalmody] you wish to separate from me you must also separate from the Egyptians and Lybians, from the inhabitants of Thebes, Palestine, Arabia, Phœnicia, Syria,