STRINGSCALES

G diminished Scale — Guitar Fretboard Visualization

Low E string: E, F#, G, A, Bb, C, Db, Eb, E at frets 0, 2, 3, 5, 6, 8, 9, 11, 12

A string: A, Bb, C, Db, Eb, E, F#, G, A at frets 0, 1, 3, 4, 6, 7, 9, 10, 12

D string: Eb, E, F#, G, A, Bb, C, Db at frets 1, 2, 4, 5, 7, 8, 10, 11

G string: G, A, Bb, C, Db, Eb, E, F#, G at frets 0, 2, 3, 5, 6, 8, 9, 11, 12

B string: C, Db, Eb, E, F#, G, A, Bb at frets 1, 2, 4, 5, 7, 8, 10, 11

High E string: E, F#, G, A, Bb, C, Db, Eb, E at frets 0, 2, 3, 5, 6, 8, 9, 11, 12

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G 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

G 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.

A half-whole diminishedC half-whole diminishedEb 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 G, whose four chord tones sit right inside it.
  • Every pattern repeats a minor 3rd (Bb) up; learn one octave of G 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

Open G sounds the root, with a major second on open A and the major sixth on the E pair, so four open strings back this key. E-shape barre at fret 3 doubles as the low root anchor, which lets one position handle chords and melody. Bb diminished 3 frets up takes the identical fingering, so the same box recycles up the neck. D string root waits at fret 5. Next shape begins at fret 7.

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