6561/6400: Difference between revisions
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'''6561/6400''', the '''double syntonic comma''', is equal to | '''6561/6400''', the '''double syntonic comma''', is equal to two [[81/80]]'s stacked or (81/80)<sup>2</sup>. | ||
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== Sagittal notation == | |||
In the [[Sagittal]] system, the downward version of this comma (possibly tempered) is represented by the sagittal {{sagittal | \\! }} and is called the '''25 small diesis''', or '''25S''' for short, because the simplest interval it notates is 25/1 = 5×5 (equiv. 25/16), as for example in E{{nbhsp}}{{sagittal | b }}-B{{nbhsp}}{{sagittal | \\! }}. The upward version is called '''1/25S''' or '''25S up''' and is represented by {{sagittal| //| }}. | |||
Latest revision as of 08:31, 10 October 2024
| Interval information |
[sound info]
6561/6400, the double syntonic comma, is equal to two 81/80's stacked or (81/80)2.
Sagittal notation
In the Sagittal system, the downward version of this comma (possibly tempered) is represented by the sagittal and is called the 25 small diesis, or 25S for short, because the simplest interval it notates is 25/1 = 5×5 (equiv. 25/16), as for example in E -B . The upward version is called 1/25S or 25S up and is represented by .