Martin G. Georgiev


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Figure 23: Microtonal Fluctuation: schematic representation. The pivotal scale degrees are designated by white noteheads and the fluctuating ones – by black noteheads. The possible alterations (by quarter-tone increments) are given for each fluctuating degree at the top stave. At the bottom stave the four possible 3-note modes (by quarter-tone increments) derived from example 1. (top stave) are given. The possible 4-note combinations from example 2. (top stave) and 5-note combinations from example 3. (top stave) can be derived in the same way, while the grounding principles for the intervallic structure of a mode described in Chapter 2.1 apply, as well as all general principles of modal morphing outlined in the text. The description of fluctuation is given in chapter 1.2.


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