1) in what ways did composers of chant vary their melodies? 2) how did hildegard of bingen instill her music with emotional expression?

1) in what ways did composers of chant vary their melodies?

2) how did hildegard of bingen instill her music with emotional expression?

3) why did composers of early polyphony use chant as the basis for their works?

answers in 200 words all together