17edt: Difference between revisions
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== Intervals == | == Intervals == | ||
The notation schemes below are based on the BPS-Lambda enneatonic scale presented in the symmetric (sLsLsLsLs, Cassiopeian) mode in J, and the Mintaka macrodiatonic scale presented in the macro-Phrygian (sLLLsLL) mode in E. Interval approximations shown | The notation schemes below are based on the BPS-Lambda enneatonic scale presented in the symmetric (sLsLsLsLs, Cassiopeian) mode in J, and the Mintaka macrodiatonic scale presented in the macro-Phrygian (sLLLsLL) mode in E. | ||
Interval approximations shown in the 3.5.7.11.17 [[subgroup]] column are those within the 77-throdd [[limit]] and less than 1/3 of a step off (all of these being [[consistent]]). | |||
Interval approximations shown in the 3.5.7.11''.14.16''.17 subgroup column are those within the 77-[[integer limit]] and less than 15 [[cents]] off, consistency is not taken into account. | |||
{| class="wikitable center-2 center-3 center-4 mw-collapsible" | {| class="wikitable center-2 center-3 center-4 mw-collapsible" | ||
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! | Note (Macrodiatonic notation) | ! | Note (Macrodiatonic notation) | ||
! | Approximate 3.5.7.11.17 [[subgroup]] intervals | ! | Approximate 3.5.7.11.17 [[subgroup]] intervals | ||
! | Additional 3.5.7.11''.14.16''.17 | ! | Additional 3.5.7.11''.14.16''.17 subgroup intervals^ | ||
! | Cents | ! | Cents | ||
! | Hekts | ! | Hekts | ||
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| | Gb | | | Gb | ||
| | [[25/22]] (+2.5c); [[17/15]] (+7.1c); [[63/55]] (-11.3c) | | | [[25/22]] (+2.5c); [[17/15]] (+7.1c); [[63/55]] (-11.3c) | ||
| | | | | 16/14 ([[8/7]]) (-7.5c) | ||
| | 223.8 | | | 223.8 | ||
| | 152.9 | | | 152.9 | ||
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| | 1300. | | | 1300. | ||
|} | |} | ||
It's a strange coincidence how the schemes of 17EDO and 17EDT diatonicism are so similar and how their approximations of 9/7 are off by such similar amounts in opposite directions (17EDO -11.6 cents and 17EDT +12.4 cents). | It's a strange coincidence how the schemes of 17EDO and 17EDT diatonicism are so similar and how their approximations of 9/7 are off by such similar amounts in opposite directions (17EDO -11.6 cents and 17EDT +12.4 cents). | ||