User:Lucius Chiaraviglio/Keyboard Layout Lab/Non-Isomorphic Lumatone mappings: Difference between revisions

91edo (demonstrated to work): Insert Bryan Deister's pseudo-isomorphic Lumatone mapping for 92edo after this
18edo (demonstrated to work): Add description of scale support (including MODMOS)
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=== 18edo (demonstrated to work) ===
=== 18edo (demonstrated to work) ===


A pseudo-isomorphic pseudo-diatonic mapping for [[18edo]] that duplicates note 0 (as note 18) enables diatonic playing while keeping octaves level — it is the [[19edo]] diatonic layout, but with only 18 unique notes per octave.  This is demonstrated in [[Bryan Deister]]'s [https://www.youtube.com/shorts/hNmse4IUWL0 ''18edo improv''] (2025).
A pseudo-isomorphic pseudo-diatonic mapping for [[18edo]] that duplicates note 0 (as note 18) enables diatonic playing while keeping octaves level &mdash; it is the [[19edo]] diatonic layout, but with only 18 unique notes per octave. Alternatively, it can be interpreted as the 4L&nbsp;3s Janko layout, but with a duplicate of note 0 added, which allows it to support both the 4L&nbsp;3s scale (3:2 step ratio) and a 5L&nbsp;1s<sub>1</sub>&nbsp;1s<sub>2</sub> MODMOS scale (3:2:1 step ratio).  This is demonstrated in [[Bryan Deister]]'s [https://www.youtube.com/shorts/hNmse4IUWL0 ''18edo improv''] (2025).


{{Lumatone EDO mapping|n=19|start=-2|xstep=3|ystep=-1}}
{{Lumatone EDO mapping|n=19|start=-2|xstep=3|ystep=-1}}


Added:  [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) 05:44, 25 September 2025 (UTC)<br>
Added:  [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) 05:44, 25 September 2025 (UTC)<br>
Last modified:  [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) 07:27, 27 September 2025 (UTC)
Last modified:  [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) 20:57, 27 September 2025 (UTC)


=== 52edo (demonstrated to work) ===
=== 52edo (demonstrated to work) ===