How is everybody doing on this fine day?

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

What was ottaviano petrucci known for? a. he made the first violin. b. he choreographed the first ballet. c. he wrote the song greensleeves, a famous english folk song. d. he printed the first significant collection of polyphonic music.

Name two artists who made an important contribution to blues, gospel, soul, or motown music, and describe their accomplishments.