Who did Eadwine the Scribe emulate in his self-portrait?

How did Beethoven create works of unprecedented scope and depth?

a. by combining popular and classic musical idioms b. by expanding the number of acts in an opera c. by attaching narratives to some of his purely instrumental works d. by writing detailed notes to go along with all of his compositions

What is meant by "glossing" when applied to the early motet?

What will be an ideal response?