Reticular intonation: Difference between revisions
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Largely in theory, then, the types of RI are the following: | Largely in theory, then, the types of RI are the following: | ||
* Orthogonal and pseudo-orthogonal: based on an interval audibly not very distinct from the product of unequal positive integer powers of integers (the [[ | * Orthogonal and pseudo-orthogonal: based on an interval audibly not very distinct from the product of unequal positive integer powers of integers (the [[Bohlen–Pierce]] [[Lambda]] scale is the canonical example of this type) | ||
* Diagonal: based on any other interval (the family of [[EDF|edf]]s supporting the temperament based on a cycle of 5/4s is the canonical example of this type) | * Diagonal: based on any other interval (the family of [[EDF|edf]]s supporting the temperament based on a cycle of 5/4s is the canonical example of this type) | ||
For entirely practical purposes, however, only the diagonal type contains intervals which have unlimited utility as the base of a scale; a seventh entirely and a sixth partially being too wide to seriously muddy close voicings of triads and a tenth being narrow enough to create a scale which entirely coheres. Incidentally, therefore, 2/1 is not the axis of symmetry of this region, being in fact significantly flat of that interval, itself not even being a simple fraction of 2/1 (although essentially, if not exactly 2 degrees of [[3edt]]). | For entirely practical purposes, however, only the diagonal type contains intervals which have unlimited utility as the base of a scale; a seventh entirely and a sixth partially being too wide to seriously muddy close voicings of triads and a tenth being narrow enough to create a scale which entirely coheres. Incidentally, therefore, 2/1 is not the axis of symmetry of this region, being in fact significantly flat of that interval, itself not even being a simple fraction of 2/1 (although essentially, if not exactly 2 degrees of [[3edt]]). | ||
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[[Category:Tuning]] | [[Category:Tuning]] | ||