Hildegard of Bingen
Benedictine monks who are famed for their Gregorian Chants.
Pope Gregory I the Great is the pope you are referring to. He did not write Gregorian Chants. He compiled and cataloged the plain songs that were used in liturgies at the time. Later they became known as Gregorian Chants.
Gregorian chants are monophonic. Gergorian chants are no longer written as they were long ago.
Pope St. Gregory I, 'The Great,' and cataloged the Gregorian Chants.
Edmund Gregory Hurley has written: 'Gregorian chant for the teacher, the choir, and the school' -- subject(s): Instruction and study, Chants (Plain, Gregorian, etc.), Gregorian chants
Gregorian chants primarily utilize modes, which are scales characterized by their unique sequences of whole and half steps. While some modes do begin on the note E, not all Gregorian chants are confined to this starting note; they can begin on various pitches depending on the mode used. The most commonly referenced modes in Gregorian chant are the Dorian, Phrygian, Lydian, and Mixolydian modes, each with its own tonal center. Therefore, it is inaccurate to say that all Gregorian chants begin on the note E.
Norman Holly has written: 'Elementary grammar of Gregorian chant' -- subject(s): Gregorian chants
Gregorian chants were used as a means of group meditation and prayer by monks who sang them together in monasteries.
David Nicholson has written: 'A dictionary of plainsong' -- subject(s): Dictionaries, Gregorian chants 'Singing in God's ear' -- subject(s): Gregorian chants, Instruction and study 'Vernacular and music in the missions'
The following are characteristics of Gregorio chants except:
Joseph Schrembs has written: 'The Gregorian chant manual of the Catholic music hour' -- subject(s): Gregorian chants
Pope St. Gregory I, the Great, collected the melodies and plain chant so associated with him that they are now known as Gregorian Chants.