Skip fretting system 38 2 11

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One way to play 38-edo on a 19-edo guitar is to tune each pair of adjacent strings 11\38 apart, or 347 cents.

Among the possible skip fretting systems for 38-edo, this is particularly convenient because 11/38 is an essentially perfect 11/9, just 0.04 cents from just, making it easy to tune adjacent strings by ear if you can sound the appropriate harmonics, while every other string is a perfect 5th apart, making 5-limit chords intuitive to play if you have previous experience playing members of the mandolin family, while also improving on 19-edo's approximations of nearly all the higher limit harmonics.

Here is where all the primes intervals lie:

note fretboard position
0 steps = 1 % 1 string 0 fret 0
38 steps = 2 % 1 string 4 fret - 3
22 steps = 3 % 2 string 2 fret 0
12 steps = 5 % 4 string 2 fret -5
31 steps = 7 % 4 string 3 fret -1
17 steps = 11 % 8 string 1 fret 3
27 steps = 13 % 8 string 3 fret -3
3 steps = 17 % 16 string 1 fret -4
9 steps = 19 % 16 string 1 fret -1
20 steps = 23 % 16 string 2 fret -1
33 steps = 29 % 16 string 3 fret 0
36 steps = 31 % 16 string 4 fret - 4

From these, the location of any compound interval can be added by vector-summing the string-fret positions of the interval's factors. See Skip fretting system 48 2 13 for details on how that's done.