256/255: Difference between revisions
mNo edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
{{Infobox Interval | {{Infobox Interval | ||
| Name = septendecimal kleisma, 255th subharmonic | | Name = septendecimal kleisma, <br>diasemisma, <br>255th subharmonic | ||
| Color name = 17ug1, sugu 1sn,<br>Sugu comma | | Color name = 17ug1, sugu 1sn, <br>Sugu comma | ||
| Comma = yes | | Comma = yes | ||
}} | }} | ||
'''256/255''', the '''septendecimal kleisma''', or '''255th subharmonic''', is a [[small comma|small]] [[17-limit]] [[superparticular]] comma about 6.8 [[cent]]s in size. It forms the amount by which a stack consisting of [[15/8]] and | '''256/255''', the '''septendecimal kleisma''', '''diasemisma''' or '''255th subharmonic''', is a [[small comma|small]] [[17-limit]] [[superparticular]] comma about 6.8 [[cent]]s in size. It is the difference between [[16/15]] (classical diatonic semitone) and [[17/16]] (large septendecimal semitone, also called as ''minor diatonic semitone''), and forms the amount by which a stack consisting of [[15/8]] and 17/16 falls short of an [[octave]]. It differs from [[352/351]] (the minthma) by [[936/935]] – an [[unnoticeable comma]] measuring about 1.85 cents. | ||
By tempering it out is defined the '''diasemismic temperament''', which enables the [[diasemismic chords]]. | |||
== Etymology == | |||
The name ''diasemisma'' was named by [[User:Xenllium|Xenllium]] in 2023. It is a contraction of ''diatonic semitone'' into a single word. However, ''septendecimal kleisma'' and ''255th subharmonic'' were attested much earlier. | |||
== See also == | == See also == | ||
* [[Small comma]] | * [[Small comma]] | ||
* [[List of superparticular intervals]] | * [[List of superparticular intervals]] | ||
[[Category:Diasemismic]] | |||