Low E string: E, F, G#, A, Bb, C, D, E at frets 0, 1, 4, 5, 6, 8, 10, 12
A string: A, Bb, C, D, E, F, G#, A at frets 0, 1, 3, 5, 7, 8, 11, 12
D string: D, E, F, G#, A, Bb, C, D at frets 0, 2, 3, 6, 7, 8, 10, 12
G string: G#, A, Bb, C, D, E, F at frets 1, 2, 3, 5, 7, 9, 10
B string: C, D, E, F, G#, A, Bb at frets 1, 3, 5, 6, 9, 10, 11
High E string: E, F, G#, A, Bb, C, D, E at frets 0, 1, 4, 5, 6, 8, 10, 12
The ultralocrian scale is the seventh mode of the harmonic minor scale: locrian with its 4th and 7th squeezed down further, leaving a diminished 7th chord spelled straight up the scale. Everything in it wants to collapse inward, which makes it a natural over diminished 7th chords and the darkest corners of metal and jazz vocabulary.
it consists of these notes and degrees:
I
bii
bbIII
bIV+
bv
bVI
bbVII
Characteristic note: F (bb7), the double-flat seventh that makes this the darkest mode of harmonic minor.
Same notes, different mode
G# ultralocrian uses the same notes as the scales below. Start from a different note and you get a new mode built on the very same note set.
How to play G♯ ultralocrian on guitar
G string holds the nearest root at fret 1. Open low E, A, D, and high E intersect the scale, contributing a minor sixth, a minor second, and a diminished fifth. A capo on fret 1 turns everything into G fingering, which lets the familiar frame do the lifting. Chord pool holds Am, Dm, and Caug with no functional dominant, so progressions resolve by melodic motion instead.
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