Low E string: Gb, Bbb, Cb, Db, Ebb at frets 2, 5, 7, 9, 10
A string: Bbb, Cb, Db, Ebb, Gb, Bbb at frets 0, 2, 4, 5, 9, 12
D string: Ebb, Gb, Bbb, Cb, Db, Ebb at frets 0, 4, 7, 9, 11, 12
G string: Bbb, Cb, Db, Ebb, Gb at frets 2, 4, 6, 7, 11
B string: Cb, Db, Ebb, Gb, Bbb, Cb at frets 0, 2, 3, 7, 10, 12
High E string: Gb, Bbb, Cb, Db, Ebb at frets 2, 5, 7, 9, 10
The vietnamese 1 scale is a five note minor-leaning set: root, flat 3rd, 4th, 5th, flat 6th. It is the minor pentatonic with the flat 6th in place of the flat 7th, and that single swap darkens the whole scale, the b6 always wanting to fall to the 5th. A distinctive alternative when minor pentatonic lines feel too familiar.
it consists of these notes and degrees:
I
bIII
IV
V
bVI
How to play G♭ vietnamese 1 on guitar
Open A, D, and B carry tones once you accept the spelling, Bbb, Ebb, and Cb, so three strings drone in a five-flat key. Roots sit under the 2nd fret on either E string, so the barre lands as the nearest anchor to the nut. Capo the 2nd fret and E fingering appears. Additional roots appear at the 4th, 7th, and 9th frets, and position one gives way at the 6th.
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