User:Lucius Chiaraviglio/Keyboard Layout Lab: Difference between revisions

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 === 39edo (demonstrated to work, but awaiting approval) ===
-[[Bryan Deister]] has used a [[Porcupine]]-inspired layout for [[39edo]], as demonstrated in [https://www.youtube.com/watch?v=XLRaG_pBN7k&lc=UgwfjZwncsryQjeNUg14AaABAg.AHVkw8aNSEGAHZU_J2qOPM ''39edo jam''] (2025). The rightward generator is 5\39, half of a [[6/5]] minor third as [[12/11]] ~ [[11/10]] (but much closer to 12/11), as if for a [[1L&nbsp;6s]] scale in [[Hemikleismic]] temperament, but true Hemikleismic has [[38edo]] as its closest member, and achieving 1L&nbsp;6s with 39edo requires a large step of 9\39. This misses [[3/2]], but if one of the increments is moved from the large step to one of the small steps (making the recipient 6\39), then it is possible to get not only 3/2 (mildly sharp), but also [[11/8]] (near-just), 6/5 (slightly flat), and the aforementioned half of 6/5 before it (somewhat sharp 12/11), as well as [[18/11]] (moderately sharp) and [[9/5]] (near-just) after it. Other temperament possibilities are [[Augmented]] and [[Immunity]], which intersect at 39edo. The range is somewhat over 6 octaves but with the first and last octaves missing some notes due to clipping by the upper left and lower right corners of the layout, and the octaves tilt down moderately.
+[[Bryan Deister]] has used a [[Porcupine]]-inspired layout for [[39edo]], as demonstrated in [https://www.youtube.com/watch?v=XLRaG_pBN7k&lc=UgwfjZwncsryQjeNUg14AaABAg.AHVkw8aNSEGAHZU_J2qOPM ''39edo jam''] (2025). To take advantage of the fact that 39edo is at the intersection of [[Augmented]] and [[Immunity]], the rightward generator is 5\39, half of a [[6/5]] minor third as [[12/11]] ~ [[11/10]] (but much closer to 12/11).  This enables a MODMOS derived from [[1L&nbsp;6s]] by shrinking the large step from 9\39 to 8\39 and expanding one of the small steps from 5\39 to 6\39, to enable chords such as 12/11 (somewhat sharp) - 6/5 (slightly flat) - [[11/8]] (near-just) - [[3/2]] (mildly sharp) - [[18/11]] (moderately sharp) - [[9/5]]. The range is slightly over 6 octaves overall (which slant moderately downwards), but with the first and last octaves missing some notes due to clipping in the upper left and lower right corners of the layout.
 {{Lumatone EDO mapping|n=39|start=34|xstep=5|ystep=3}}
+Added:  [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) 06:50, 1 May 2025 (UTC)
 == Miracle + Ripple (off-beat) Lumatone mappings ==