User:Ganaram inukshuk/Notes/TAMNAMS: Difference between revisions
→Other names (in-progress): Added description, for a generalized super-mos family, refined description for monolarge/polylarge mosses |
→Names for other mos families (in-progress): Refined descriptions for mos families, attempted to describe golden temperament mosses in a temperament-agnostic context |
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=== Names for other mos families (in-progress) === | === Names for other mos families (in-progress) === | ||
Mosses of the form xL (kx+y)s form an infinite linear family. | Mosses of the form xL (kx+y)s form an infinite linear family. The first member of this family is the mos such that k = 0 and y < x, or x = y = 1. | ||
* The simplest mos family of this form, the '''monolarge''' family, includes all mosses of the form 1L ns | * The simplest mos family of this form, the '''monolarge''' family, includes all mosses of the form 1L ns. This family starts at 1L 1s. | ||
* The next simplest mos family, the '''bilarge''' family, includes all mosses of the form 2L ( | * The next simplest mos family, the '''bilarge''' family, includes all mosses of the form 2L (kn+1)s. This family starts at 2L 1s. | ||
* Mosses of the general form of xL (kx+y)s, the '''xL ys polylarge''' or '''(mos name) polylarge''' family, belong to the same family | * Mosses of the general form of xL (kx+y)s, the '''xL ys polylarge''' or '''(mos name) polylarge''' family, belong to the same family. | ||
** For a mos of the form xL ys, descendant mosses of the form xL (kx+y)s are formed using a step ratio for xL ys that is around the pseudocollapesed range, and xL (kx+y)s is the kth mos descendant of this form. | ** For a mos of the form xL ys, descendant mosses of the form xL (kx+y)s are formed using a step ratio for xL ys that is around the pseudocollapesed range, and xL (kx+y)s is the kth mos descendant of this form. | ||
** For a mos of the form xL ys, a similar linear family | ** For a mos of the form xL ys, a similar linear family has the form (x+y)L (x+k(x+y))s. These descendant mosses are formed using a step ratio for xL ys that is around the pseduequalized range, and (x+y)L (x+k(x+y))s is the kth mos descendant of this form. | ||
A similar family of mosses are of the form (x+ky)L ys. These do not form a family of related mosses in that their generators are different sizes, but serves as the sister of the form xL (kx+y)s. One noteworthy example is diatonic (5L 2s) and superdiatonic/armotonoc (7L 2s), a pair of indirectly related mosses where the structure of the mos is similar except for the number of large steps. | A similar family of mosses are of the form (x+ky)L ys. These do not form a family of related mosses in that their generators are different sizes, but serves as the sister of the form xL (kx+y)s. One noteworthy example is diatonic (5L 2s) and superdiatonic/armotonoc (7L 2s), a pair of indirectly related mosses where the structure of the mos is similar except for the number of large steps. | ||
* The sister of the mos family 1L ns is nL 1s, and may be called monosmall. | |||
* The sister of the mos family 2L (kn+1)s is (kn+1)L 2s, and may be call bismall. | |||
* The sister of the mos family xL (kx+y)s is (x+ky)L ys, and may be called yL xs polysmall or (mos name) polysmall. | |||
Another mos family corresponds to the golden ratio, and is commonly associated with golden temperaments, such as golden meantone. These mosses have the form (F(n)x+F(n-1)y)L (F(n-1)x+F(n-2)y)s, where F(n), F(n-1), and F(n-2) are the nth, (n-1)th, and (n-2)th Fibonacci numbers. Here, F(1) = 1 and F(0) = 0. These mosses are formed using a step ratio for xL ys that approximates or is equal to the golden ratio. | |||
=== Reasoning for names === | === Reasoning for names === |