Answer: I think candidate D since they have a reccomendation
Explanation: Recomendations are always good and help improve your standing
The answer is D) rhythm.
During the Ars Antiqua, music theory made great strides. One of the most important innovations from this time was the devlopment of a notation, or written representation in sheet music, of rhythm. Rhythm is naturally a very important element of music, and being able to represent the rhythm of a song in written form made it much easier to play it accurately without having heard it.
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Key is F sharp
rhythm- (first 4 measures) do, do, do oo, do oo, do oo, do, do, rest, do, do de (next 4 measures) do, do, do, do, do oo, do, rest, do oo, do oo, do oo, do oo
solfege -mezzo piano for the first 4 measures and then mezzo forte for the next 4 measures