活页乐谱

原文

Alleluia. Dominus dixit. minor third down. In nativitate Domini ad missam in nocte. Scores. Gregorian Chant.

译文

哈里路亚. Dominus迪克西特. minor third down. 在nocte nativitate多米尼广告missam. 分数. 格里高利圣歌.