attack a decisive manner of beginning a musical tone or phrase
aspersion -
a disparaging remark; "in the 19th century any reference to female sexuality was considered a vile aspersion"; "it is difficult for a woman to understand a man's sensitivity to any slur on his virility"
derogation,
disparagement,
depreciation (law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law; "any derogation of the common law is to be strictly construed"
aspersion -
the act of sprinkling water in baptism (rare)