Help plsss plsss for band

The byzantine style introduced what what into the history of art ?

Which style of polyphony uses a borrowed chant and arranges several new melodies and texts above and unrelated to the chant?

What motivates lillian jean to tell cassie all her secrets? her feeling of superiority over cassieher feeling that cassie cannot be trustedher need to trick cassie into liking herher need to make cassie feel jealous