If I were to chose a element of design it would probably be color because there are all sorts of different colors and if you took away color
everything would be boring and plain you could still paint but with only
black and white. That is why I chose color and that is also why I think
that color is the most important element. The principal of design that I
would chose would probably be pattern because if we did not have
pattern nothing would be organized.

your answer looks like it is already correct i approve it. Did you mean to put answer choices?

earliest

neumes above text

neumes

colored lines

neumes

4-line staff

f, c, or g clef

notes on 5-line staff with clef

mensuration (longas and breves)

time signature (perfect or half circle)

most recent

notes on 5-line staff

modern clefs

modern note values (whole, half, quarter, and so on)

modern time signature

italian words and abbreviations for dynamics and tempo

staccato, slurs, and so on