Skip fretting system 58 4 15: Difference between revisions

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Created page with "One way to play 58-edo on a 14.5-edo guitar is to tune each pair of adjacent strings 15\58 apart. That's about 310.3 cents, or 5.3 cents flat of 6:5. == Where the first prime..."
 
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One way to play 58-edo on a 14.5-edo guitar is to tune each pair of adjacent strings 15\58 apart. That's about 310.3 cents, or 5.3 cents flat of 6:5.
One way to play [[58-edo]] on a [[28ed4|14.5-edo]] guitar is to tune each pair of adjacent strings 15\58 apart. That's about 310.3 [[cents]], or 5.3 cents flat of [[6/5|6:5]].


== Where the first primes intervals lie ==
== Where the first primes intervals lie ==
[[File:58-edo 15x4.png|thumb|Where the harmonics lie in the 15\58 x 4\58 isomorphic layout]]


In the folowing the strings are vertical and the frets are horizontal. 1 represents octave equivalents of the root, 3 represents octave equivalents of the 3rd harmonic (3:2, 3:1, 3:4, etc.), etc.
The diagram below (or at right, or somewhere) is of a hypothetical 12-string guitar in this tuning. It shows where each of the odd [[harmonic]]s through the 29th lies. 1 represents [[octave]] [[Equivalence interval|equivalents]] of the root (1/2, 1, 2, 4 ...), 3 represents octave equivalents of the 3rd harmonic (3:2, 3:1, 3:4 ...), etc.


(Note that 58-edo is consistent in the 17-limit plus 29. That is to say, of the harmonics depicted below, the most interesting ones are probably the values less than or equal to 17, plus 29.)
Since 58-edo is [[consistent]] in the [[17-limit]] plus 29 group, the positions of the harmonics in that group imply how to play every [[interval]] in it. For instance, the interval [[10/7|10:7]] lies two strings up on the same fret, because that will take you from harmonic 7 to harmonic 5.


                  headstock on this side
    
 
[[Category:Skip fretting]]
              1  - 23  -  -  -  -  7  -  5
[[Category:58edo]]
              -  5  3  -  -  -  -  -  - 21
              - 21  - 15  9  -  -  -  - 11
              - 11  -  - 19  - 27  -  -  -
              -  -  -  -  -  -  - 17  -  -
              -  - 29  -  - 25  -  -  -  -
              -  -  -  -  - 13  -  -  -  -
    bass      -  -  1  - 23  -  -  -  -  7   treble
    strings  -  7  -  5  3  -  -  -  -  -  strings
              -  -  - 21  - 15  9  -  -  -
              -  -  - 11  -  - 19  - 27  -
            27  -  -  -  -  -  -  -  - 17
              - 17  -  - 29  -  - 25  -  -
              -  -  -  -  -  -  - 13  -  -
              -  -  -  -  1  - 23  -  -  -
              -  -  -  7  -  5  3  -  -  -
 
                    bridge on this side
 
[[Category:Skip fretting]] [[Category:58edo]]

Latest revision as of 20:27, 22 March 2024

One way to play 58-edo on a 14.5-edo guitar is to tune each pair of adjacent strings 15\58 apart. That's about 310.3 cents, or 5.3 cents flat of 6:5.

Where the first primes intervals lie

Where the harmonics lie in the 15\58 x 4\58 isomorphic layout

The diagram below (or at right, or somewhere) is of a hypothetical 12-string guitar in this tuning. It shows where each of the odd harmonics through the 29th lies. 1 represents octave equivalents of the root (1/2, 1, 2, 4 ...), 3 represents octave equivalents of the 3rd harmonic (3:2, 3:1, 3:4 ...), etc.

Since 58-edo is consistent in the 17-limit plus 29 group, the positions of the harmonics in that group imply how to play every interval in it. For instance, the interval 10:7 lies two strings up on the same fret, because that will take you from harmonic 7 to harmonic 5.