User:Lucius Chiaraviglio/Keyboard Layout Lab/Non-Octave Lumatone mappings: Difference between revisions
→9ed7/6 (demonstrated to work but awaiting approval): Got correction(?) |
→7ed8/5 (demonstrated to work but awaiting approval: Got approval |
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== Unnamed Temperament Lumatone mappings ED8/5 == | == Unnamed Temperament Lumatone mappings ED8/5 == | ||
=== 7ed8/5 (demonstrated to work | === 7ed8/5 (demonstrated to work) === | ||
[[Bryan Deister]] has demonstrated a mapping of [[7ed8/5]] using a [[1L 1s (8/5-equivalent)]] scale having a 5:2 step ratio and rotated to proceed right and up, in [https://www.youtube.com/shorts/Ex3EKrUt8q8 ''7ed(8/5) improv''] (2025). Right by one key is 5\7ed8/5, which yields a near-just ~[[7/5]] but also gets mapped as a very flat (but still consistent) ~[[10/7]]; two of these yield a very flat octave (~[[2/1]]). Down-right by one key is 3\7ed8/5, which functions as a fairly sharp ~[[17/14]] and a very flat ~[[21/17]]. Up one key is 2\7ed8/5, which sounds like a near-just septimal whole tone (~[[8/7]]), but actual ~8/7 is instead inconsistently mapped to 1\7ed8/5, thus requiring 2\7ed8/5 to be mapped as a very sharp ~[[9/8]] or a fairly flat ~[[15/13]]. Superficially, the range appears to be slightly over five instances of 8/5, and the overall 8/5 slope is very gently upward; however, due to the rotated and very wide-stepping scale pattern, the actual range is over nineteen octaves (as demonstrated in the video by the production of some extremely high notes); proceeding in the normal rightward and slightly downward direction instead yields a scale of [[5L 1s (4096/625-equivalent)]] having a 5:3 step ratio. | [[Bryan Deister]] has demonstrated a mapping of [[7ed8/5]] using a [[1L 1s (8/5-equivalent)]] scale having a 5:2 step ratio and rotated to proceed right and up, in [https://www.youtube.com/shorts/Ex3EKrUt8q8 ''7ed(8/5) improv''] (2025). Right by one key is 5\7ed8/5, which yields a near-just ~[[7/5]] but also gets mapped as a very flat (but still consistent) ~[[10/7]]; two of these yield a very flat octave (~[[2/1]]). Down-right by one key is 3\7ed8/5, which functions as a fairly sharp ~[[17/14]] and a very flat ~[[21/17]]. Up one key is 2\7ed8/5, which sounds like a near-just septimal whole tone (~[[8/7]]), but actual ~8/7 is instead inconsistently mapped to 1\7ed8/5, thus requiring 2\7ed8/5 to be mapped as a very sharp ~[[9/8]] or a fairly flat ~[[15/13]]. Superficially, the range appears to be slightly over five instances of 8/5, and the overall 8/5 slope is very gently upward; however, due to the rotated and very wide-stepping scale pattern, the actual range is over nineteen octaves (as demonstrated in the video by the production of some extremely high notes); proceeding in the normal rightward and slightly downward direction instead yields a scale of [[5L 1s (4096/625-equivalent)]] having a 5:3 step ratio. | ||
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Added: [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) 07:42, 19 October 2025 (UTC)<br> | Added: [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) 07:42, 19 October 2025 (UTC)<br> | ||
Last modified: [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) | Last modified: [[User:Lucius Chiaraviglio|Lucius Chiaraviglio]] ([[User talk:Lucius Chiaraviglio|talk]]) 07:41, 23 October 2025 (UTC) | ||