There is nothing too small or remote to get beyond the reach of the Law of Duality; it follows the major and minor scales through all their inverse and reciprocal progressions, and by-and-by it appears at the extremity of complex music in the shape of inverse fugue. [Scientific Basis and Build of Music, page 44]

See Also

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chord
Figure 12.13 - Some Multi-Dimensional as Inverse and Direct Reciprocal Relationships
fugue
grand fugue
inverse chirp z-transform
inverse process
inverse progression
Inverse Square Law
Multiplicative inverse
Ramsay - Nature's Grand Fugue - The System of Musical Vibrations
Ramsay - Nature's Inverse Process for the Minor Genesis
Ramsay - PLATE I - Nature's Grand Fugue