User:BudjarnLambeth/Tailwind comma: Difference between revisions

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Created page with "{{Novelty}} {{Infobox Interval | Name = tailwind comma | Color name = 89o1u1 | Comma = yes }} '''This page is about Budjarn Lambeth’s idiosyncratic use of this comma. For mainstream xenharmonic uses see 89/88.''' '''89/88''', a.k.a. the '''tailwind comma''', is an 89-limit superparticular comma tempered out by two of the Batch 89 temperaments. Tempering this comma on its own gives the tailwind temperament, a rank-2 2.11.89 subgroup..."
 
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<div style="border: 1px green solid; background-color: #efe; padding: 0.5em 1em; margin-bottom: 1em">
'''This page is about [[Budjarn Lambeth]]’s [[idiosyncratic]] use of this comma. For mainstream xenharmonic uses see [[89/88]].'''
</div>
{{Novelty}}
{{Novelty}}


{{Infobox Interval
{{Infobox Interval
| Name = tailwind comma
| Name = tailwind comma
| Ratio = 89/88
| Color name = 89o1u1
| Color name = 89o1u1
| Comma = yes
| Comma = yes
}}
}}
'''This page is about [[Budjarn Lambeth]]’s [[idiosyncratic]] use of this comma. For mainstream xenharmonic uses see [[89/88]].'''


'''89/88''', a.k.a. the '''tailwind comma''', is an [[89-limit]] [[superparticular]] [[comma]] tempered out by two of the [[Batch 89 temperaments]].
'''89/88''', a.k.a. the '''tailwind comma''', is an [[89-limit]] [[superparticular]] [[comma]] tempered out by two of the [[Batch 89 temperaments]].


Tempering this comma on its own gives the tailwind temperament, a [[rank-2]] 2.11.89 [[subgroup]] temperament.
Tempering this comma on its own gives the '''tailwind temperament''', a [[rank-2]] 2.11.89 [[subgroup]] temperament.


Tempering out 89/88 equates the harmonics [[11/8]] and [[89/64]].  
Tempering out 89/88 equates the harmonics [[11/8]] and [[89/64]].  

Revision as of 05:26, 11 April 2025

This page is about Budjarn Lambeth’s idiosyncratic use of this comma. For mainstream xenharmonic uses see 89/88.

This page presents a novelty topic.

It may contain ideas which are less likely to find practical applications in music, or numbers or structures that are arbitrary or exceedingly small, large, or complex.

Novelty topics are often developed by a single person or a small group. As such, this page may also contain idiosyncratic terms, notation, or conceptual frameworks.

Interval information
Ratio 89/88
Subgroup monzo 2.11.89 [-3 -1 1
Size in cents 19.56217¢
Name tailwind comma
Color name 89o1u1
FJS name [math]\displaystyle{ \text{A1}^{89}_{11} }[/math]
Special properties superparticular,
reduced
Tenney height (log2 nd) 12.9352
Weil height (log2 max(n, d)) 12.9515
Wilson height (sopfr(nd)) 106
Comma size small
Open this interval in xen-calc

89/88, a.k.a. the tailwind comma, is an 89-limit superparticular comma tempered out by two of the Batch 89 temperaments.

Tempering this comma on its own gives the tailwind temperament, a rank-2 2.11.89 subgroup temperament.

Tempering out 89/88 equates the harmonics 11/8 and 89/64.

If not tempered out, then 89/88 is very well approximated by 1 step of 36edf.

Tailwind

Equal Temperament Mappings
2	11	89	
[ ⟨	2	7	13	]
⟨	9	31	58	] ⟩
 
Reduced Mapping
2	11	89	
[ ⟨	1	4	7	]
⟨	0	-1	-1	] ⟩
 
TE Generator Tunings (cents)
⟨1200.9330, 648.6921]
 
TE Step Tunings (cents)
⟨166.43584, 96.45125]
 
TE Tuning Map (cents)
⟨1200.933, 4155.040, 7757.839]
 
TE Mistunings (cents)
⟨0.933, 3.722, -13.041]

These calculations use inharmonic TE. Subgroup TE will not work because the basis is not a subgroup of the rational numbers or has a redundant entry or something else is wrong.
 
Complexity	0.118010
Adjusted Error	9.221690 cents
TE Error	1.424038 cents/octave
 
Unison Vector
[-3, -1, 1⟩ (89:88)
 
Scala Files
Number of notes per octave
TE	2	9	
Pure octaves	2	9