Mason Green's New Common Practice Notation: Difference between revisions

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{| class="wikitable"
{| class="wikitable"
|-
|-
! Number of steps
! rowspan="3" | Number of steps
! Interval name
! rowspan="3" | Interval name
! Approximation
! rowspan="3" | JI intervals represented
! Scale degree name
! colspan="3" | Scale degree
! Scale degree symbol
|-
! Scale degree Roman numeral
! rowspan="2" | Name
! colspan="2" | Symbol
|-
! Number
! Roman numeral
|-
|-
| 0
| 0
| Unison
| Unison
| 1:1
| 1/1
| Tonic
| Tonic
| 1
| 1
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| 5/4, 16/13, 26/21
| 5/4, 16/13, 26/21
| Major mediant
| Major mediant
| <span style="text-decoration: overline;">3</span>
| {{overline|3}}
| <span style="text-decoration: overline;">III</span>
| {{overline|III}}
|-
|-
| 7
| 7
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| 5/3
| 5/3
| Major submediant
| Major submediant
| <span style="text-decoration: overline;">6</span>
| {{overline|6}}
| <span style="text-decoration: overline;">VI</span>
| {{overline|VI}}
|-
|-
| 15
| 15
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* All progressions using only I, IV, and V.
* All progressions using only I, IV, and V.
* The circle progression (<span style="text-decoration: overline;">vi</span> - ii- V - I).
* The circle progression ({{overline|vi}} - ii- V - I).
* The 50s progression (I – <span style="text-decoration: overline;">vi</span> - IV - V)
* The 50s progression (I – {{overline|vi}} - IV - V)
* "Axis of Awesome" (I - V - <span style="text-decoration: overline;">vi </span>- IV).
* "Axis of Awesome" (I - V - {{overline|vi}} - IV).
* Pachelbel's Canon (I - V - <span style="text-decoration: overline;">vi </span>- <span style="text-decoration: overline;">iii </span>- IV - I - IV - V)
* Pachelbel's Canon (I - V - {{overline|vi}} - {{overline|iii}} - IV - I - IV - V)


There are also many new possibilities that don't have any close analogues in 12edo. In general, enneadecimal scales offer more flexibility as well as orders of magnitude more possibilities for chord progressions, due to the greater diversity of both chords and scale degrees.
There are also many new possibilities that don't have any close analogues in 12edo. In general, enneadecimal scales offer more flexibility as well as orders of magnitude more possibilities for chord progressions, due to the greater diversity of both chords and scale degrees.