You have your answer right.
I believe that the answer is true, because of shading is why we see three dimensional objects instead of two dimensional
Hope that helped at least a little
Answer:
- Clef is a symbol at the left end of the staff showing the pitch of the notes written on the staff.
- The treble clef is a type of clef that is placed above middle C on the second-lowest line of the staff.
- The musical alphabet is the notes of music that are sung or played. They go from A, B, C, D, E, F, G and then repeat.
Note:
Not sure if this is what you were looking for, but I hope it helps!