256/245: Difference between revisions

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Created page with "{{Infobox Interval | JI glyph = | Ratio = 256/245 | Monzo = 8 0 -1 -2 | Cents = 76.0345 | Name = septimal minor semitone | Sound = | Color name = rrg1, rurugu unison | FJS n..."
 
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{{Infobox Interval
{{Infobox Interval
| JI glyph =
| Name = bapbo comma
| Ratio = 256/245
| Monzo = 8 0 -1 -2
| Cents = 76.0345
| Name = septimal minor semitone
| Sound =
| Color name = rrg1, rurugu unison
| Color name = rrg1, rurugu unison
| FJS name = P1<sub>5,7,7</sub>
| Comma = yes
}}
}}


'''256/245''', the '''septimal minor semitone''', is the amount by which two [[8/7]]s exceed a [[5/4]]. It exceeds [[25/24]] by [[6144/6125]] and [[24/23]] by [[736/735]]. It also falls short of [[21/20]] by [[1029/1024]].
'''256/245''', the '''bapbo comma''', is the amount by which two [[8/7]]s exceed a [[5/4]], thus is the stack of two [[64/63]]'s and one [[81/80]]. It exceeds [[25/24]] by [[6144/6125]] and [[24/23]] by [[736/735]]. It also falls short of [[256/243]] by [[245/243]] and of [[21/20]] by [[1029/1024]].  
 
== See also ==
* [[Bapbo clan]]
* [[Medium comma]]
 
[[Category:Commas with unknown etymology]]

Latest revision as of 07:19, 3 November 2024

Interval information
Ratio 256/245
Factorization 28 × 5-1 × 7-2
Monzo [8 0 -1 -2
Size in cents 76.03447¢
Name bapbo comma
Color name rrg1, rurugu unison
FJS name [math]\displaystyle{ \text{P1}_{5,7,7} }[/math]
Special properties reduced,
reduced subharmonic
Tenney height (log2 nd) 15.9366
Weil height (log2 max(n, d)) 16
Wilson height (sopfr(nd)) 35
Comma size medium
S-expression S82 × S9
Open this interval in xen-calc

256/245, the bapbo comma, is the amount by which two 8/7s exceed a 5/4, thus is the stack of two 64/63's and one 81/80. It exceeds 25/24 by 6144/6125 and 24/23 by 736/735. It also falls short of 256/243 by 245/243 and of 21/20 by 1029/1024.

See also