Answer:
Look below
Step-by-step explanation:
Hi there, I played musical instruments for about 6 years total so I can help!
Number 4 is actually D. All of the above.
5. C. Lines and spaces.
7. A. E
8. A. An octave
9. C. Knowing the pitch of a note without playing it dirst on an instrument.
All your other answers are correct.
Hope this helps :)