Lumatone mapping for 25edo: Difference between revisions
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m rejig Luna so it makes sense again following on from all the new stuff. |
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{{Lumatone mapping intro}} | |||
== Antidiatonic == | |||
You can use the b val, which creates the [[2L 5s]] [[Mavila]] mapping. | |||
{{Lumatone EDO mapping|n=25|start=11|xstep=3|ystep=2}} | {{Lumatone EDO mapping|n=25|start=11|xstep=3|ystep=2}} | ||
== Blackwood + Hamity == | |||
Since 25edo's flat fifth is very flat, even more than [[16edo]], better options exist for reaching consonant intervals easily, and [[Blackwood]] mappings serve that need, while also functioning as [[Hamity]] mappings (the generator 9\25 being a slightly flat septimal major third ~[[9/7]]) supporting scales [[3L 5s]] (5:2 step ratio, Checkertonic) + [[3L 2s]] (7:2 step ratio). A rotated antidiatonic ([[2L 5s]], 5:3 step ratio) scale is also available, with vertically repeated notes partially mitigating the required vertical wraparounds. Two versions are available. Octaves slope moderately upwards as expected for Blackwood mappings, but the range is slightly different between versions. | |||
=== Hamity generator 9\25 laid out as right 1 key + up 2 keys, favoring Antidiatonic scale === | |||
The antidiatonic scale has less of a slope than the Hamity scale, and the range is 6 octaves. | |||
{{Lumatone EDO mapping|n=25|start=21|xstep=5|ystep=-2}} | {{Lumatone EDO mapping|n=25|start=21|xstep=5|ystep=-2}} | ||
=== Hamity generator 9\25 laid out as right 1 key + down-right 2 keys, favoring Checkertonic scale === | |||
The Hamity scale has less of a slope than the antidiatonic scale, and the range is 5¾ octaves. [[Bryan Deister]] has demonstrated this mapping in [https://www.youtube.com/shorts/flOUjg09uAY ''25edo''] (2023). | |||
{{Lumatone EDO mapping|n=25|start=4|xstep=5|ystep=-3}} | |||
== Luna == | |||
The [[luna]] mapping also works well, as it puts the decently tuned 5th and 7th harmonics in a straight line from the root. | |||
{{Lumatone EDO mapping|n=25|start=7|xstep=4|ystep=1}} | {{Lumatone EDO mapping|n=25|start=7|xstep=4|ystep=1}} | ||
== Gariberttet + Magic == | |||
[[Bryan Deister]] has demonstrated a mapping of [[25edo]] that functions for both [[Gariberttet]] compressed to [[1L 3s]] (7:6 step ratio) and [[Magic]] [[3L 4s]] (7:1 step ratio), both having rotated scales, in [https://www.youtube.com/shorts/4WZo1loLbeI ''Waltz in 25edo (short clip)''] (2024), with both the [[Blackwood]] fifth ~[[50/33]] and the [[Mavila]] sub-fifth ~[[25/17]] in easy reach. The range is over nine octaves, although with a severe downwards slant. | |||
{{Lumatone EDO mapping|n=25|start=0|xstep=7|ystep=-1}} | |||
{{Navbox Lumatone}} | {{Navbox Lumatone}} | ||