Low E string: Fb, Gb, Ab, Bb, Cb, D, Fb at frets 0, 2, 4, 6, 7, 10, 12
A string: Bb, Cb, D, Fb, Gb, Ab at frets 1, 2, 5, 7, 9, 11
D string: D, Fb, Gb, Ab, Bb, Cb, D at frets 0, 2, 4, 6, 8, 9, 12
G string: Ab, Bb, Cb, D, Fb, Gb at frets 1, 3, 4, 7, 9, 11
B string: Cb, D, Fb, Gb, Ab, Bb, Cb at frets 0, 3, 5, 7, 9, 11, 12
High E string: Fb, Gb, Ab, Bb, Cb, D, Fb at frets 0, 2, 4, 6, 7, 10, 12
The mystery #1 scale is a six note synthetic set: root, flat 2nd, major 3rd, flat 5th, flat 6th, flat 7th. From the 3rd upward it walks in whole steps, so it behaves like a whole tone scale that has been given a dark flat 2nd doorstep. The name comes from scale catalogues rather than tradition; treat it as raw material for atmospheric, unresolved lines.
it consists of these notes and degrees:
I
bII
III
bV
bVI
bVII
How to play B♭ mystery #1 on guitar
A-shape barre: fret 1, the lowest root here. Add a capo at fret 1 instead and everything reads as A fingering, which means the flat-heavy spelling stays theoretical. Open D rings the major third, while low E, high E, and B fall in the scale too, as Fb and Cb. One augmented second widens the step pattern, so at least one fingering stretch exceeds a whole step.
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