Comma: Difference between revisions

Overthink (talk | contribs)
As an interval region: expand description
+ Sagittal definition
 
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{{Main| Comma and diesis }}
{{Main| Comma and diesis }}


As an interval region, a '''comma''' can be used to refer to any interval bigger than 0{{c}}, but smaller than around 30{{c}}. Comma-sized intervals can be used in melody as an {{W|appoggiatura}}, an {{W|acciaccatura}}, or a quick passing tone. Two notes that differ by a comma can be played together for a "shimmer" effect that results from beating between the tones.
As an interval region, a comma can be used to refer to any interval bigger than 0{{c}}, but smaller than around 30{{c}}. In [[Sagittal notation]], a comma is specifically defined as between half of the [[Pythagorean comma]] {{monzo| -19 12 }} and half of the [[17-comma]] {{monzo| 27 -17 }}, about 11.7{{c}} to 33.4{{c}}<ref>[https://sagittal.org/sagittal.pdf ''Sagittal – A Microtonal Notation System''] by [[George Secor|George D. Secor]] and [[Dave Keenan|David C. Keenan]]</ref>.
 
Comma-sized intervals can be used in melody as an {{W|appoggiatura}}, an {{W|acciaccatura}}, or a quick passing tone. Two notes that differ by a comma can be played together for a "shimmer" effect that results from beating between the tones.


Most commonly, commas serve as the separation between two close intervals, such as 9/8 and 8/7. Playing notes a comma apart in succession usually sounds like a "dirty" variation of the same note rather than a distinct melodic step, with the smallest intervals that sounds like a distinct step being around a [[quartertone]] in size.
Most commonly, commas serve as the separation between two close intervals, such as 9/8 and 8/7. Playing notes a comma apart in succession usually sounds like a "dirty" variation of the same note rather than a distinct melodic step, with the smallest intervals that sounds like a distinct step being around a [[quartertone]] in size.
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== External links ==
== External links ==
* [http://www.tonalsoft.com/enc/c/comma.aspx Comma] on [[Tonalsoft Encyclopedia]]
* [http://www.tonalsoft.com/enc/c/comma.aspx Comma] on [[Tonalsoft Encyclopedia]]
== References ==
<references/>


[[Category:Comma| ]] <!-- main article -->
[[Category:Comma| ]] <!-- main article -->