STRINGSCALES

G♭ diminished Scale — Guitar Fretboard Visualization

Low E string: F, Gb, Ab, Bbb, Cb, Dbb, Ebb, Eb at frets 1, 2, 4, 5, 7, 8, 10, 11

A string: Bbb, Cb, Dbb, Ebb, Eb, F, Gb, Ab, Bbb at frets 0, 2, 3, 5, 6, 8, 9, 11, 12

D string: Ebb, Eb, F, Gb, Ab, Bbb, Cb, Dbb, Ebb at frets 0, 1, 3, 4, 6, 7, 9, 10, 12

G string: Ab, Bbb, Cb, Dbb, Ebb, Eb, F, Gb at frets 1, 2, 4, 5, 7, 8, 10, 11

B string: Cb, Dbb, Ebb, Eb, F, Gb, Ab, Bbb, Cb at frets 0, 1, 3, 4, 6, 7, 9, 10, 12

High E string: F, Gb, Ab, Bbb, Cb, Dbb, Ebb, Eb at frets 1, 2, 4, 5, 7, 8, 10, 11

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Gb diminished

The diminished scale (the whole-half diminished scale) alternates whole and half steps through eight notes. It serves fully diminished 7th chords, and its minor-3rd symmetry means fingerings repeat every three frets: learn one octave and you own the neck. Jazz and classical writing both exploit its ability to spiral tension upward before resolving.

it consists of these notes and degrees:

G♭

I

A♭

II

B𝄫

bIII

C♭

IV

D𝄫

bV

E𝄫

bVI

E♭

VI

F

VII

Same notes, different mode

Gb diminished 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.

Ab half-whole diminishedCb half-whole diminishedD half-whole diminishedF half-whole diminished

diminished in all 12 keys, with chords and related scales

tip
  • This is the whole-half diminished scale: run it over a fully diminished 7th chord in Gb, whose four chord tones sit right inside it.
  • Every pattern repeats a minor 3rd (A) up; learn one octave of Gb fingering and transpose it in three-fret jumps.
  • Alternate a diminished 7th arpeggio with scale steps for the classic spiraling tension line.
  • Do not confuse it with the half-whole scale: whole-half fits the diminished chord itself, half-whole fits dominant 7b9 chords.

How to play G♭ diminished on guitar

Lowest root lands at fret 2 of the low E string, with an E-shape barre right there, so this key stays near the nut. Open A carries the minor third, open D a minor sixth and open B the perfect fourth, which lets three strings drone under a fretted line. Drop a capo onto fret 2 and E fingering takes over, so the signature stops mattering to your left hand. Same shape names A diminished 3 semitones up. Everything from fret 6 is the next box.

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