81edo: Difference between revisions
→Notation: added the modern (as opposed to the classical) version of the ups and downs accidentals |
→Instruments: Add Lumatone mapping for 81edo |
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== Notation == | == Notation == | ||
===Ups and downs notation=== | ===Ups and downs notation=== | ||
81edo can be notated with [[ups and downs]], spoken as up, dup, dudsharp, downsharp, sharp, upsharp etc. and down, dud, dupflat etc. Note that dudsharp is equivalent to trup (triple-up) and dupflat is equivalent to trud (triple-down). | |||
{{Sharpness-sharp5a}} | {{Sharpness-sharp5a}} | ||
Another notation uses [[Alternative symbols for ups and downs notation#Sharp-5|alternative ups and downs]]. Here, this can be done using sharps and flats with arrows, borrowed from extended [[Helmholtz–Ellis notation]]: | Another notation uses [[Alternative symbols for ups and downs notation#Sharp-5|alternative ups and downs]]. Here, this can be done using sharps and flats with arrows, borrowed from extended [[Helmholtz–Ellis notation]]: | ||
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* [[Leantone7]] | * [[Leantone7]] | ||
* [[Leantone13]] | * [[Leantone13]] | ||
== Instruments == | |||
=== Skip fretting === | |||
'''Skip fretting system 81 7 20''' is a [[skip fretting]] system for [[81edo]]. All examples on this page are for 7-string [[guitar]]. | |||
; Prime harmonics | |||
1/1: string 2 open | |||
2/1: string 5 fret 3 | |||
3/2: string 4 fret 1 and string 7 fret 4 | |||
5/4: string 7 fret 1 | |||
7/4: string 3 fret 18 | |||
11/8: string 3 fret 14 | |||
13/8: string 1 fret 11 and string 4 fret 14 | |||
17/16: string 2 fret 1 and string 5 fret 4 | |||
19/16: string 3 open | |||
23/16: string 2 fret 6 and string 5 fret 9 | |||
29/16: string 3 fret 7 and string 6 fret 10 | |||
31/16: string 2 fret 11 and string 5 fret 14 | |||
; Chords | |||
Minor 7th: 100133x | |||
Dominant 7th: 10113xx | |||
=== Keyboards === | |||
A [[Lumatone mapping for 81edo]] is available. | |||
== Music == | |||
; [[Bryan Deister]] | |||
* [https://www.youtube.com/shorts/5O6Cyawjkd8 ''''microtonal improvisation in 81edo''] (2025) | |||
== Notes == | == Notes == | ||