today in history we discussed bartok's use of the fibonacci series(1,1,2,3,5,8...) and the golden section(Φ=0.681..., and a²+a-1=0 so that a=1.618), as well as expanding out from the circle of fifths in either direction to move tritones away, as the crazy complicated structure for the first movement fugue from music for strings, percussion, and
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