5L 4s: Difference between revisions
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== Theory == | == Theory == | ||
The | The harmonic entropy minimum with this MOS pattern is [[godzilla]], in which the generator tempers [[8/7]] or [[7/6]] to be the same interval, and two generators is [[4/3]]. However, in addition to godzilla (tempering out 81/80) and the 2.3.7 temperament [[semaphore]], there is also a weird scale called "[[pseudo-semaphore]]", in which two different flavors of [[3/2]] exist in the same scale: an octave minus two generators makes a sharp 3/2, and two octaves minus seven generators makes a flat 3/2. The 2.3.13/5 [[barbados]] temperament is another possible interpretation. | ||
== Tuning ranges == | == Tuning ranges == | ||
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==== Hypohard ==== | ==== Hypohard ==== | ||
The sizes of the generator, large step and small step of 5L 4s are as follows in various hypohard (2/1 | The sizes of the generator, large step and small step of 5L 4s are as follows in various hypohard ({{nowrap|2/1 ≤ L/s ≤ 3/1}}) tunings. | ||
{| class="wikitable right-2 right-3 right-4 right-5 right-6" | {| class="wikitable right-2 right-3 right-4 right-5 right-6" | ||
! | ! | ||
! [[14edo]] (L/s = 2/1) | ! [[14edo]] ({{nowrap|L/s {{=}} 2/1}}) | ||
! [[47edo]] (L/s = 7/3) | ! [[47edo]] ({{nowrap|L/s {{=}} 7/3}}) | ||
! [[33edo]] (L/s = 5/2) | ! [[33edo]] ({{nowrap|L/s {{=}} 5/2}}) | ||
! [[52edo]] (L/s = 8/3) | ! [[52edo]] ({{nowrap|L/s {{=}} 8/3}}) | ||
! [[19edo]] (L/s = 3/1) | ! [[19edo]] ({{nowrap|L/s {{=}} 3/1}}) | ||
|- | |- | ||
| generator (g) | | generator (g) | ||
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| 4\19, 252.63 | | 4\19, 252.63 | ||
|- | |- | ||
| L (octave | | L ({{nowrap|octave − 4g}}) | ||
| 171.43 | | 171.43 | ||
| 178.72 | | 178.72 | ||
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| 189.47 | | 189.47 | ||
|- | |- | ||
| s (5g | | s ({{nowrap|5g − octave}}) | ||
| 85.71 | | 85.71 | ||
| 76.60 | | 76.60 | ||
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| 63.16 | | 63.16 | ||
|} | |} | ||
This range is notable for having many simple tunings that are close to being "eigentunings" (tunings that tune a certain JI interval exactly): | This range is notable for having many simple tunings that are close to being "eigentunings" (tunings that tune a certain JI interval exactly): | ||
* 33edo semiquartal has close 7/5 (error | * 33edo semiquartal has close 7/5 (error −0.69¢), 9/5 (error −0.59¢) and 9/7 (error +1.28¢), thus can be used for the close 5:7:9 in the two Locrian-like modes 1{{pipe}}7 and 0{{pipe}}8 | ||
* 52edo semiquartal has close 22/19 (error +0.04¢) | * 52edo semiquartal has close 22/19 (error +0.04¢) | ||
* 19edo semiquartal has close 6/5 (error +0.15¢) and 28/27 (error +0.20¢) | * 19edo semiquartal has close 6/5 (error +0.15¢) and 28/27 (error +0.20¢) | ||
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| 6\29, 248.28 | | 6\29, 248.28 | ||
|- | |- | ||
| L (octave | | L ({{nowrap|octave − 4g}}) | ||
| 189.47 | | 189.47 | ||
| 200.00 | | 200.00 | ||
| 206.90 | | 206.90 | ||
|- | |- | ||
| s (5g | | s ({{nowrap|5g − octave}}) | ||
| 63.16 | | 63.16 | ||
| 50.00 | | 50.00 | ||
| Line 126: | Line 127: | ||
| 8\37, 259.46 | | 8\37, 259.46 | ||
|- | |- | ||
| L (octave | | L ({{nowrap|octave − 4g}}) | ||
| 156.52 | | 156.52 | ||
| 150.00 | | 150.00 | ||
| 162.16 | | 162.16 | ||
|- | |- | ||
| s (5g | | s ({{nowrap|5g − octave}}) | ||
| 104.35 | | 104.35 | ||
| 112.50 | | 112.50 | ||
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== Music == | == Music == | ||
* [https://www.soundclick.com/bands/songInfo.cfm?bandID=376205&songID=5327098 ''Entropy, the Grandfather of Wind''] (broken link. 2011-03-04) | * [https://www.soundclick.com/bands/songInfo.cfm?bandID=376205&songID=5327098 ''Entropy, the Grandfather of Wind''] (broken link. 2011-03-04) In [[14edo]]{{dead link}} | ||
; [[Frédéric Gagné]] | ; [[Frédéric Gagné]] | ||
* ''Whalectric'' (2022) | * ''Whalectric'' (2022) – [https://youtu.be/_E6qvbJWYY8 YouTube] | [https://musescore.com/fredg999/whalectric score] – In [[51edo]], 4{{pipe}}4 mode | ||
; [[Inthar]] | ; [[Inthar]] | ||
* [[:File:Dream EP 14edo Sketch.mp3|''Dream EP 14edo Sketch'']] (2021) | * [[:File:Dream EP 14edo Sketch.mp3|''Dream EP 14edo Sketch'']] (2021) – A short swing ditty in [[14edo]], in the 212121221 mode | ||
* [[:File:19edo Semaphore Fugue.mp3|''19edo Semaphore Fugue'']] (2021) | * [[:File:19edo Semaphore Fugue.mp3|''19edo Semaphore Fugue'']] (2021) – An unfinished fugue in [[19edo]], in the 212121221 mode | ||
; [[Starshine]] | ; [[Starshine]] | ||
* [https://soundcloud.com/starshine99/rins-ufo-ride ''Rin's UFO Ride''] (2020) | * [https://soundcloud.com/starshine99/rins-ufo-ride ''Rin's UFO Ride''] (2020) – Semaphore[9] in [[19edo]] | ||
; [[Sevish]] | |||
* [http://www.youtube.com/watch?v=Gcgawrr2xao | ''Desert Island Rain;''] – Semaphore[9] in [[313edo]] using 65\313 as the generator | |||
[[Category:Semiquartal| ]] <!-- main article --> | [[Category:Semiquartal| ]] <!-- main article --> | ||