Twenty years ago, they recorded some 1,400-year-dld Gregorian chants.

二十年前，他们开始录制一些有着1400年历史的罗马教皇格利高里的圣歌。

Gregory the Great Gregorian chant had almost nothing to do with Gregory.

他称为格里高利教皇格里高利圣歌其实与他完全无关。

Some years back I had the pleasure of living there for ten days to study Gregorian chant.

前些年我住在那里有段很愉快的经历我花了十天来学习格列高利圣歌。