Lumatone mapping for 53edo: Difference between revisions
→Other mappings: Add Bryan Deister's 8L 1s Lumatone mapping for 53edo |
Figured out the temperament for Bryan Deister's 8L 1s mapping: Doublethink, so moved this up into Orwell mappings; also add some notes to the other Orwell and Barbados mappings; also reorganized these into separate sections |
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{{Lumatone EDO mapping|n=53|start=47|xstep=8|ystep=-1}} | {{Lumatone EDO mapping|n=53|start=47|xstep=8|ystep=-1}} | ||
== | == Orwell == | ||
The basic [[Lumatone mapping for orwell|Orwell]] mapping gives over six octaves of range, but the compressed [[4L 1s]] mapping misses many notes along the way. To cover the full gamut, the mapping can be expanded to [[4L 5s]] or [[8L 1s]], but the range is reduced to around four octaves, and the octaves are tilted. | |||
=== | === Compressed === | ||
In addition to missing some notes, this mapping does not have the double duty features of the expanded mappings below. That said, the octaves only have a slight slope, so on a hypothetical XL-sized Lumatone having enough keys for all the notes, this would be a respectable mapping. | |||
{{Lumatone EDO mapping|n=53|start=6|xstep=12|ystep=-7}} | {{Lumatone EDO mapping|n=53|start=6|xstep=12|ystep=-7}} | ||
=== Expanded Orwell + Misneb === | |||
The range of this expanded mapping is slightly over four octaves, nominally more than that of the Doublethink mapping below, but the top and bottom octaves are both missing some notes due to being cut off in the upper left and lower right corners. That said, the generator is 5\53, or [[16/15]] ~ [[15/14]], which enables this mapping to do double duty for [[Marvel_temperaments#Misneb|Misneb]]. | |||
{{Lumatone EDO mapping|n=53|start=44|xstep=5|ystep=2}} | {{Lumatone EDO mapping|n=53|start=44|xstep=5|ystep=2}} | ||
=== | === Doublethink === | ||
==== Compressed === | The [[8L 1s]] mapping has generator 6\53 ([[14/13]] ~ [[13/12]]), and two of them make a fairly accurate ~[[7/6]]; six of them make the very accurate ~[[8/5]]; and fourteen of them make the extremely accurate ~[[3/1]], making this an alternative [[Orwell]] mapping with the generator ~7/6 split in half, or in other words [[Semicomma family#Doublethink|Doublethink]]. [[Bryan Deister]] has demonstrated this mapping in [https://www.youtube.com/shorts/r-Tzq33OGM4 ''microtonal improvisation in 53edo''] (2025). The range is a bit over three and a half octaves (sloping upwards), but in the demonstration video it appears less due to use of only 1 MIDI channel, which cuts off notes at both the left and right margins. If enough MIDI channels are used to accommodate all keys on the Lumatone, no notes are missing until the better part of the way through the top partial (more than half) octave. | ||
{{Lumatone EDO mapping|n=53|start=37|xstep=6|ystep=-1}} | |||
== Semiquartal == | |||
The basic [[Barbados]] mapping gives over six octaves of range, but this compressed [[4L 1s]] mapping misses many notes along the way. To cover the full gamut, Barbados can be expanded to [[5L 4s]], but the range is reduced to just over four octaves and the octaves are tilted downwards. Each mapping does double duty for other temperaments. | |||
=== Compressed Semiquartal + Hemischis/Hemigari === | |||
Although this mapping is missing some notes, the slope of the octaves is slight, and its generator of 11\53 (~[[15/13]]) enables it to do double duty as a [[Schismatic_family#Hemischis|Hemischis]]/[[Schismatic_family#Hemigari|Hemigari]] mapping, which could be useful on a hypothetical XL-sized Lumatone having enough keys for all the notes. | |||
{{Lumatone EDO mapping|n=53|start=32|xstep=11|ystep=-2}} | {{Lumatone EDO mapping|n=53|start=32|xstep=11|ystep=-2}} | ||
=== Expanded Semiquartal + Baldy === | |||
This expanded mapping has 9\53 as its generator, which is the extremely accurate ~[[9/8]], enabling it to do double duty as a [[Subgroup_temperaments#Baldy|Baldy]] mapping. | |||
{{Lumatone EDO mapping|n=53|start=5|xstep=9|ystep=-7}} | {{Lumatone EDO mapping|n=53|start=5|xstep=9|ystep=-7}} | ||
{{Navbox Lumatone}} | {{Navbox Lumatone}} |