Texture of Kyrie by Hildegard Bingen Medieval period?

Kyrie by Hildegard Bingen is a monophonic chant, meaning it is sung in a single line of melody without accompaniment. It is an example of plainchant, which is the traditional unaccompanied singing of the liturgy in Western Christianity. The texture of Kyrie by Hildegard Bingen is therefore relatively simple, with the melody following the rhythm of the text and no additional harmonies or instrumental accompaniment.