Describe the factors affecting atmospheric pressure.

Where does middle c get it’s name? a. it sits in the middle of a brass clef b. it sits in the middle of the grand staff c. if sits in the middle of the alto clef d.its sits in the middle of the treble clef

How does the music sync with the dancing?

The earliest type of phonograph was recorded sound on a a. tape. b. metal cylinder. c. wax cylinder. d. vinyl disk.