User:Ganaram inukshuk/Notes/TAMNAMS: Difference between revisions

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** The shortened notation of "u|" is sufficient in most cases, but in situations where it makes more sense to think in terms of the dark generator, such as with a mos whose dark generator is the bright generator of a related mos, the notation is instead "|d".

This simplified notation will be used throughout, unless otherwise specified. In any case, the name of a mos can be substituted for its xL ys form.

This simplified notation will be used throughout this section, unless otherwise specified. In any case, the name of a mos can be substituted for its xL ys form.

=== Finding mos modes ===

Rotating the sequence of steps - that is, moving the step at the beginning to the end - produces a different mode. This can be repeated until the initial mode that was started with is produced.

This rotation process usually returns the modes in rotational order, not by brightness. To get the modes in order by brightness, produce every interval for each mode - starting at the mosunison and ending at the mosoctave - producing an [[interval matrix]]. The brightest mode will be the mode that has all of its intervals - excluding the mosunison, mosoctave, and mosperiods if multi-period - in its large size. The 2nd-brightest mode will have one interval in its small size - for multi-period mosses, one interval is in its small size for every instance of the mosperiod - and so on. The darkest mode will have all of its intervals in its small size. A much faster way to do this process is to skip making an interval matrix and sort the modes produced by rotation in alphabetical order, effectively sorting all modes by decreasing brightness. In either case, the UDP for the modes sorted by brightness are (n-1)|0, (n-2)|1, and so on to 0|(n-1). The table below shows the modes produced rotationally, and can be sorted by UDP.

This rotation process usually returns the modes in rotational order, not by brightness. To get the modes in order by brightness, produce every interval for each mode - starting at the mosunison and ending at the mosoctave - producing an [[interval matrix]]. The brightest mode will be the mode that has all of its intervals - excluding the mosunison, mosoctave, and mosperiods if multi-period - in its large size. The 2nd-brightest mode will have one interval in its small size - for multi-period mosses, one interval is in its small size for every instance of the mosperiod - and so on. The darkest mode will have all of its intervals in its small size. A much faster way to do this process is to skip making an interval matrix and sort the modes produced by rotation in alphabetical order, effectively sorting all modes by decreasing brightness. In either case, the UDP for the modes sorted by brightness are (n-1)|0, (n-2)|1, and so on to 0|(n-1), or (n-1)|, (n-2)| to 0|. The table below shows the modes produced rotationally, and can be sorted by UDP.

{| class="wikitable sortable"

|+Modes of 5L 3s, with interval sizes

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==== Alterations to a mode ====

~~To denote alterations~~ to a mode, ~~we can use any accidental alteration~~ whose meaning is clear. ~~For non-~~diatonic ~~mosses~~, the degree ~~modified~~ is ~~indicated using TAMNAMS's~~ 0-~~indexing convention. For~~ example, ~~LsLsLLLs can be~~ written "5L 3s 5| @4d" (read "5L 3s 5 pipe at-4-degree"), ~~using~~ the @ accidental from [[diamond-mos notation]].

Alterations to a mode are denoted by listing what 0-indexed mosdegrees are altered, using accidentals whose meaning and notation is made clear. As a diatonic example, mixolydian b6 can be written as 5L 2s 5| b6 (where the 6th degree is is a ordinal-indexed 6th, not a 0-indexed mosdegree), but for a non-diatonic example, mode 5| of 5L 3s with a 4-mosdegree lowered by a chroma is written as "5L 3s 5| @4d" (read as "5L 3s 5 pipe at-4-degree", where the "at/@" accidental is from [[diamond-mos notation]]).

=== Named mos modes ===

@@ Line 25: / Line 25: @@
 ** The shortened notation of "u|" is sufficient in most cases, but in situations where it makes more sense to think in terms of the dark generator, such as with a mos whose dark generator is the bright generator of a related mos, the notation is instead "|d".
-This simplified notation will be used throughout, unless otherwise specified. In any case, the name of a mos can be substituted for its xL ys form.
+This simplified notation will be used throughout this section, unless otherwise specified. In any case, the name of a mos can be substituted for its xL ys form.
 === Finding mos modes ===
 Rotating the sequence of steps - that is, moving the step at the beginning to the end - produces a different mode. This can be repeated until the initial mode that was started with is produced.
-This rotation process usually returns the modes in rotational order, not by brightness. To get the modes in order by brightness, produce every interval for each mode - starting at the mosunison and ending at the mosoctave - producing an [[interval matrix]]. The brightest mode will be the mode that has all of its intervals - excluding the mosunison, mosoctave, and mosperiods if multi-period - in its large size. The 2nd-brightest mode will have one interval in its small size - for multi-period mosses, one interval is in its small size for every instance of the mosperiod - and so on. The darkest mode will have all of its intervals in its small size. A much faster way to do this process is to skip making an interval matrix and sort the modes produced by rotation in alphabetical order, effectively sorting all modes by decreasing brightness. In either case, the UDP for the modes sorted by brightness are (n-1)|0, (n-2)|1, and so on to 0|(n-1). The table below shows the modes produced rotationally, and can be sorted by UDP.
+This rotation process usually returns the modes in rotational order, not by brightness. To get the modes in order by brightness, produce every interval for each mode - starting at the mosunison and ending at the mosoctave - producing an [[interval matrix]]. The brightest mode will be the mode that has all of its intervals - excluding the mosunison, mosoctave, and mosperiods if multi-period - in its large size. The 2nd-brightest mode will have one interval in its small size - for multi-period mosses, one interval is in its small size for every instance of the mosperiod - and so on. The darkest mode will have all of its intervals in its small size. A much faster way to do this process is to skip making an interval matrix and sort the modes produced by rotation in alphabetical order, effectively sorting all modes by decreasing brightness. In either case, the UDP for the modes sorted by brightness are (n-1)|0, (n-2)|1, and so on to 0|(n-1), or (n-1)|, (n-2)| to 0|. The table below shows the modes produced rotationally, and can be sorted by UDP.
 {| class="wikitable sortable"
 |+Modes of 5L 3s, with interval sizes
@@ Line 215: / Line 215: @@
 ==== Alterations to a mode ====
-To denote alterations to a mode, we can use any accidental alteration whose meaning is clear. For non-diatonic mosses, the degree modified is indicated using TAMNAMS's 0-indexing convention. For example, LsLsLLLs can be written "5L 3s 5| @4d" (read "5L 3s 5 pipe at-4-degree"), using the @ accidental from [[diamond-mos notation]].
+Alterations to a mode are denoted by listing what 0-indexed mosdegrees are altered, using accidentals whose meaning and notation is made clear. As a diatonic example, mixolydian b6 can be written as 5L 2s 5| b6 (where the 6th degree is is a ordinal-indexed 6th, not a 0-indexed mosdegree), but for a non-diatonic example, mode 5| of 5L 3s with a 4-mosdegree lowered by a chroma is written as "5L 3s 5| @4d" (read as "5L 3s 5 pipe at-4-degree", where the "at/@" accidental is from [[diamond-mos notation]]).
 === Named mos modes ===