Primodality: Difference between revisions

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'''Primodality''' (also informally called '''Zheanism''' after its originator [[Zhea Erose]]) is an approach to JI designed to emphasize the identity of the "tonic" as the pth harmonic and places importance on the particular timbre of chords with a given tonic. Scales and chords having the identity of the prime p as the tonic are collectively called a '''prime family''', and can be denoted simply by ''/p''. Zhea also uses various adjectives for specific primodalities, such as ''septimal, undecimal, tridecimal, septendecimal, novem(decimal)'' for /7, /11, /13, /17, /19, which are not to be confused with the use of these adjectives to denote prime limits. (If disambiguation is needed, one can say ''over-7'' and ''7-limit'' respectively for the two meanings of ''septimal'', for instance.) Zhea's ideas are new in that she not only treats higher JI as different from close irrational tunings (as some, like [[Johnny Reinhard]], previously have done), but also claims that each prime comes with its own unique timbral "gestalt" which is in all chords built from small multiples of ''p'' (particularly 2''p'') as the tonic. The gestalt aspect is critical: while individual dyads in a primodal tuning may not be recognizable for what they are (using methods like harmonic entropy), when considered as a whole, their shared relationship to /p becomes apparent.

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 '''Primodality''' (also informally called '''Zheanism''' after its originator [[Zhea Erose]]) is an approach to JI designed to emphasize the identity of the "tonic" as the pth harmonic and places importance on the particular timbre of chords with a given tonic. Scales and chords having the identity of the prime p as the tonic are collectively called a '''prime family''', and can be denoted simply by ''/p''. Zhea also uses various adjectives for specific primodalities, such as ''septimal, undecimal, tridecimal, septendecimal, novem(decimal)'' for /7, /11, /13, /17, /19, which are not to be confused with the use of these adjectives to denote prime limits. (If disambiguation is needed, one can say ''over-7'' and ''7-limit'' respectively for the two meanings of ''septimal'', for instance.) Zhea's ideas are new in that she not only treats higher JI as different from close irrational tunings (as some, like [[Johnny Reinhard]], previously have done), but also claims that each prime comes with its own unique timbral "gestalt" which is in all chords built from small multiples of ''p'' (particularly 2''p'') as the tonic. The gestalt aspect is critical: while individual dyads in a primodal tuning may not be recognizable for what they are (using methods like harmonic entropy), when considered as a whole, their shared relationship to /p becomes apparent.