Answer:
Out of the four things you have there, it should be "it was based around syncopation"
Explanation:
"...based on syncopation," is the only one that really helps and makes sense in this situation.
Syncopation means 1 : a temporary displacement of the regular metrical accent in music caused typically by stressing the weak beat. 2 : a syncopated rhythm, passage, or dance step.
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