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Bass chord companion

G# Half-Diminished Chord

Learn the G# Half-Diminished chord on bass with chord tones, intervals, playable arpeggios, and fretboard maps.

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1G#b3Bb5Db7F#

Bass chord tones and arpeggios

Play these tones one at a time to outline the chord. The maps show the complete formula; the numbered exercises give an ascending path, including extensions in their written octave.

Standard four-string bass: E1 – A1 – D2 – G2. String 4 is low E; string 1 is high G. Fingers 1–4 are index through little finger; 0 is open. Use comfortable hand positions and shift where indicated.

Root on E string

G# Half-Diminished complete chord-tone map around string 4, fret 4. Choose individual tones for a bass line.

G# Half-Diminished Root on E string bass chord-tone mapG# Half-Diminished complete chord-tone map around string 4, fret 4. Choose individual tones for a bass line.EADG345671b3b5b71b3b5

Ascending arpeggio

Follow steps 1–4 below. Keep one hand position.

G# Half-Diminished Root on E string numbered bass arpeggioAscending complete formula: G#1, B1, D2, F#2. Play one numbered note at a time.EADG012341234
StepDegreeNoteString / fretFingerPosition
11G#14 / 44Fret 1
2b3B13 / 22Fret 1
3b5D22 / 0OpenFret 1
4b7F#22 / 44Fret 1

Root on A string

G# Half-Diminished complete chord-tone map around string 3, fret 11. Choose individual tones for a bass line.

G# Half-Diminished Root on A string bass chord-tone mapG# Half-Diminished complete chord-tone map around string 3, fret 11. Choose individual tones for a bass line.EADG1011121314b5b71b3b5b71

Ascending arpeggio

Follow steps 1–4 below. Keep one hand position.

G# Half-Diminished Root on A string numbered bass arpeggioAscending complete formula: G#2, B2, D3, F#3. Play one numbered note at a time.EADG91011121234
StepDegreeNoteString / fretFingerPosition
11G#23 / 113Fret 9
2b3B22 / 91Fret 9
3b5D32 / 124Fret 9
4b7F#31 / 113Fret 9

Full fretboard map

Every G# Half-Diminished Chord chord tone across the neck, with roots highlighted for quick orientation.

Interactive

Frets 0–24. Select a position or tap a note to hear it.

GDAEF#G#BDF#G#BDBDF#G#BDF#G#F#G#BDF#G#BDG#BDF#G#BDF#123456789101112131415161718192021222324

Progression examples using G# Half-Diminished

Try these progressions to hear the harmony in context. On bass, outline each chord with individual target tones.

Chord Tones

DegreeIntervalNote
1RootG#
b3m3B
b5d5D
b7m7F#

Complete Formula

1 – b3 – b5 – b7

Compound degrees retain their names: 9, 11, and 13 are extensions. A voicing may place their pitches in a closer register.

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