Dissonance, Suffering, Will to Power

In #24 of Birth of Tragedy, Nietzsche characterizes Dissonance as an admixture of Pain and Pleasure.  Hence, the constructive suffering, i. e. combining pain and strengthening, that he later values can be classified as a 'dissonant' experience.  Now, the inner structure of Dissonance is evinced in the production of it, i. e. in music--a certain juxtaposition of a variety of sounds.  But, such a configuration is not hierarchical.  Thus, insofar as the Will to Power is constituted by relations of hierarchical domination, Dissonance cannot be represented in terms of it.  Likewise, nor can the constructive suffering that he values be.