27edo: Difference between revisions

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m Notation: Template
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=== Notation ===
=== Notation ===
{| class="wikitable center-all"
{{sharpness-sharp4}}
! Step offset
| 9
| '''8'''
| 7
| 6
| 5
| '''4'''
| 3
| 2
| 1
| '''0'''
|-
! Sharp symbol
| [[File:Heji33.svg|18px|center]]
| [[File:Heji32.svg|18px|center]]
| [[File:Heji31.svg|18px|center]]
| [[File:HeQu3.svg|20px|center]]
| [[File:Heji26.svg|18px|center]]
| [[File:Heji25.svg|17px|center]]
| [[File:Heji24.svg|17px|center]]
| [[File:HeQu1.svg|14px|center]]
| [[File:Heji19.svg|18px|center]]
| rowspan="2" | [[File:Heji18.svg|15px|center]]
|-
! Flat symbol
| [[File:Heji3.svg|24px|center]]
| [[File:Heji4.svg|24px|center]]
| [[File:Heji5.svg|27px|center]]
| [[File:HeQd3.svg|24px|center]]
| [[File:Heji10.svg|19px|center]]
| [[File:Heji11.svg|15px|center]]
| [[File:Heji12.svg|18px|center]]
| [[File:HeQd1.svg|15px|center]]
| [[File:Heji17.svg|15px|center]]
|}
 
The 27-note system can be notated using [[ups and downs notation]], in which case arrows or [[Helmholtz-Ellis notation|Helmholtz–Ellis]] accidentals can be used, or with a variation on quarter tone accidentals. With standard circle-of-fifths notation, a sharp raises a note by 4 steps, just one step beneath the following nominal (for example C to C♯ describes the approximate 10/9 and 11/10 interval) and the flat conversely lowers: these are augmented unisons and diminished unisons. Just so, one finds that an accidental can be divided in half, and the remaining places can then be filled in with half-sharps, half-flats, sesquisharps, and sesquiflats, reducing the need for double sharps and double flats.The notes from C to D are C, D♭, C{{demisharp2}}, D{{demiflat2}}, C♯, and D, with some ascending intervals appearing to be descending on the staff.
The 27-note system can be notated using [[ups and downs notation]], in which case arrows or [[Helmholtz-Ellis notation|Helmholtz–Ellis]] accidentals can be used, or with a variation on quarter tone accidentals. With standard circle-of-fifths notation, a sharp raises a note by 4 steps, just one step beneath the following nominal (for example C to C♯ describes the approximate 10/9 and 11/10 interval) and the flat conversely lowers: these are augmented unisons and diminished unisons. Just so, one finds that an accidental can be divided in half, and the remaining places can then be filled in with half-sharps, half-flats, sesquisharps, and sesquiflats, reducing the need for double sharps and double flats.The notes from C to D are C, D♭, C{{demisharp2}}, D{{demiflat2}}, C♯, and D, with some ascending intervals appearing to be descending on the staff.