Help me pls

I will mark brainliest if it works for me...

Why were staff lines an important improvement to musical notation a. sl indicated rhythm b. sl indicated dynamics c. sl indicated pitch d. sl indicated meter

Look at this madonna by parmigianino. ·describe its unique features. ·discuss the effect parmigianino is able to produce in this painting

Ragtime is never a. played by a band. b. improvised. c. written in duple meter. d. syncopated.