144/143: Difference between revisions

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Cmloegcmluin (talk | contribs)
add section for this comma's use in Sagittal notation
Dave Keenan (talk | contribs)
Sagittal notation: Added upward version
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== Sagittal notation ==
== Sagittal notation ==
In the [[Sagittal]] system, the downward version of this comma (possibly tempered) is represented by the sagittal {{sagittal | )~! }} and is called the '''143 comma''', or '''143C''' for short, because the simplest ratio it notates is 128:143, as for example in C:D{{sagittal | )~! }}.
In the [[Sagittal]] system, the downward version of this comma (possibly tempered) is represented by the sagittal {{sagittal | )~! }} and is called the '''143 comma''', or '''143C''' for short, because the simplest ratio it notates is 128:143, as for example in C:D {{sagittal | )~! }}. The upward version is called '''1/143C''' or '''143C up''' and is represented by {{sagittal| )~| }}.


== See also ==
== See also ==

Revision as of 12:20, 9 October 2024

Interval information
Ratio 144/143
Factorization 24 × 32 × 11-1 × 13-1
Monzo [4 2 0 0 -1 -1
Size in cents 12.0644¢
Name grossma
Color name 3u1u1, thulu 1sn,
Thulu comma
FJS name [math]\displaystyle{ \text{A1}_{11,13} }[/math]
Special properties square superparticular,
reduced
Tenney height (log2 nd) 14.3298
Weil height (log2 max(n, d)) 14.3399
Wilson height (sopfr(nd)) 38
Comma size small
S-expression S12
Open this interval in xen-calc

144/143, the grossma, is a 13-limit small comma. It is the difference between the 11/9 and 16/13 neutral thirds, and between the 12/11 and 13/12 neutral seconds. Teff is a temperament of note that targets it.

Sagittal notation

In the Sagittal system, the downward version of this comma (possibly tempered) is represented by the sagittal ⁠ ⁠ and is called the 143 comma, or 143C for short, because the simplest ratio it notates is 128:143, as for example in C:D ⁠ ⁠. The upward version is called 1/143C or 143C up and is represented by ⁠ ⁠.

See also