Sensamagic: Difference between revisions
Make the lattice a gallery; improve linking and wording; +link to sensamagic dominant chord |
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'''Sensamagic''' is the [[Rank-3 temperament|rank-3]] [[temperament]] [[tempering out]] [[245/243]], the sensamagic comma. It has a canonical 11-limit [[extension]] adding [[385/384]] and [[896/891]] to the comma list. | |||
The temperament was named after the corresponding comma, which was named by [[Gene Ward Smith]] in 2010. See [[245/243 #Etymology]]. | The temperament was named after the corresponding comma, which was named by [[Gene Ward Smith]] in 2010. See [[245/243 #Etymology]]. | ||
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== Interval lattice == | == Interval lattice == | ||
<gallery> | |||
File:Lattice_Sensamagic.png|11-limit sensamagic | |||
</gallery> | |||
== Notation == | == Notation == | ||
Sensamagic can be notated the same as 2.3.7 [[just intonation]] since they share the same lattice structure. | Sensamagic can be notated the same as 2.3.7 [[just intonation]] since they share the same lattice structure. One way to do this is to take the conventional [[circle-of-fifths notation]] with an additional module of accidentals for the [[64/63]] comma. In this system, 7/4 is a minor seventh, 5/4 an augmented second, and 11/8 a diminished fifth. | ||
{| class="wikitable center-1 center-3" | |||
{| class="wikitable center- | |||
|+Sensamagic nomenclature<br>for selected intervals | |+Sensamagic nomenclature<br>for selected intervals | ||
! Ratio | ! Ratio | ||
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|- | |- | ||
| 5/4 | | 5/4 | ||
| Double up augmented 2nd | | Double-up augmented 2nd | ||
| C-^^D# | | C-^^D# | ||
|- | |- | ||
| Line 36: | Line 36: | ||
|} | |} | ||
Alternatively, it can be notated the same as full prime-limit just intonation, with a distinct accidental module for each prime harmonic. That makes some intervals more intuitive, at the cost of hiding the structure of sensamagic tempering. For example, it is customary of the 5/4 to be a major third, and 7/4 to be a minor seventh. As a result, the fact that the 5/3 is a stack of two 9/7's is not revealed, and the related chords can be | Alternatively, it can be notated the same as full prime-limit just intonation, with a distinct accidental module for each prime harmonic. That makes some intervals more intuitive, at the cost of hiding the structure of sensamagic tempering. For example, it is customary of the 5/4 to be a major third, and 7/4 to be a minor seventh. As a result, the fact that the 5/3 is a stack of two 9/7's is not revealed, and the related chords can be less convenient. | ||
== Chords == | == Chords == | ||
Sensamagic enables [[essentially tempered chord]]s of [[Sensamagic chords|sensamagic]], [[Keenanismic chords|keenanismic]], [[Pentacircle chords|pentacircle]], and [[Undecimal sensamagic chords|undecimal sensamagic]]. | Sensamagic enables [[essentially tempered chord]]s of [[Sensamagic chords|sensamagic]], [[Keenanismic chords|keenanismic]], [[Pentacircle chords|pentacircle]], and [[Undecimal sensamagic chords|undecimal sensamagic]]. | ||
The [[sensamagic dominant chord]] is a dominant seventh chord useful for tonal harmony in this temperament. | |||
[[Category:Temperaments]] | [[Category:Temperaments]] | ||