How to play G#m7b5: a half-diminished (m7b5) built on G#, with 1 voicing, the notes, the keys it belongs to, and songs that use it.
The first diagram is a common voicing: played at the first few frets. An X above a string means don't play it; an O means play it open.
Frets from the low E string to the high E string: 4 5 4 4 x x (x = not played).
| Note | G# | B | D | F# |
|---|---|---|---|---|
| Interval | R | b3 | b5 | b7 |
G#m7b5 is a half-diminished (m7b5) with G# as its root. The full theoretical spelling is G#, B, D, F#. This voicing sounds every chord tone.
G#m7b5 is a diatonic chord (built from the key's own notes) in 1 major key and 2 minor keys. The roman numeral is the chord's place in that key; tap a key for all of its chords.
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G#m7b5 is spelled G#, B, D, F#: the root, minor 3rd, flat 5th, flat 7th. The common guitar voicing sounds every one of them.
Frets from the low E string to the high E string: 4 5 4 4 x x (x means the string is not played). Lay your index finger across the 4th fret from the low E string to the G string (a barre). Add the A string at the 5th fret. Strum from the low E string down, skipping the B and high E strings.
G#m7b5 belongs to 3 keys: A major (the viiø chord), F# minor (the iiø) and D# minor (the ivø, from the harmonic minor).
