G#m7b5 Semidisminuido Acorde

The G# Semidisminuido chord contains: G#, B, D, F#.

These notes are derived by applying the half-diminished 7th interval formula (0–3–6–10 semitones) to the root note G#.

Diminished triad with a minor seventh.

Common in jazz as the ii chord in minor keys. The G#m7b5 chord is used across pop, rock, jazz, and classical music. As the I chord in the key of G# major, it functions as the most stable resting point in progressions.

On piano, play G#, B, D, F# simultaneously.

In root position, G# is the lowest note. Inversions move the bass note up — first inversion has B lowest, second inversion has D lowest.

A half-diminished 7th chord has 4 notes: G#, B, D, F# (in G#).

It is a 7th chord, extending beyond the basic triad.

The G# major chord (G#–C–D#) uses a major third (4 semitones), giving it a bright, happy sound.

The G# minor chord (G#–B–D#) uses a minor third (3 semitones), giving it a darker, emotional sound.

G#m7b5 naturally serves as the I chord in the key of G# major.

It also appears as IV in the key of D# major, and as V in the key of C# major.

Yes.

The ukulele uses GCEA tuning with 4 strings. The G#m7b5 chord notes (G#, B, D, F#) can be fretted on a ukulele, though the shapes differ from guitar due to the 4-string layout and shorter scale.

In the key of G# major, G#m7b5 pairs naturally with C# major (IV), D# major (V), and Fm (vi).

The classic I–IV–V (G#m7b5–C#–D#) is the foundation of blues, country, and rock.

An inversion places a non-root note in the bass.

G#m7b5 root position: G# in bass. First inversion: B in bass. Second inversion: D in bass. Inversions create smoother bass line movement without changing the harmony.

Remember the formula: 0–3–6–10 semitones from root.

For G#m7b5: start on G#, add 3 semitones, then 6 semitones, then 10 semitones. Practicing this across all 12 roots builds instant recognition of any half-diminished 7th chord.