Here some more points

Hehe

Idon’t understand the question

Musical notation is a system which is used to  visually represent music  pertaining to the ear  contend  with instruments or sung by the human voice through  the employment  of written, printed, or different symbols.in the western music tradition, the sound is represented in written form through musical notation.in musical notation, the pitch is indicated exclusively by the position of notes on the lines and spaces of the staff.

Well, in my opinion, i would think that african art should be displayed at any museums as if it was any other type of american art because slaves were forced to this country, which resulted and different cultures, so it shows the diversity of our country. the challenges that may come about is if it is not displayed as honor or if they american portrayed the art as something worse