How to play Gdim7: a diminished 7th 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: 3 4 5 3 5 x (x = not played).
| Note | G | Bb | Db | Fb |
|---|---|---|---|---|
| Interval | R | b3 | b5 | bb7 |
Gdim7 is a diminished 7th with G as its root. The full theoretical spelling is G, Bb, Db, Fb. This voicing sounds every chord tone.
Gdim7 is a diatonic chord (built from the key's own notes) in 0 major keys and 4 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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Gdim7 is spelled G, Bb, Db, Fb: the root, minor 3rd, flat 5th, double-flat 7th. The common guitar voicing sounds every one of them.
Frets from the low E string to the high E string: 3 4 5 3 5 x (x means the string is not played). Lay your index finger across the 3rd fret from the low E string to the G string (a barre). Add the A string at the 4th fret. Add the D and B strings at the 5th fret. Strum from the low E string down, skipping the high E string.
Gdim7 belongs to 4 keys: D minor (the iv°, from the harmonic minor), F minor (the ii°, from the harmonic minor), B minor (the vi°, from the harmonic minor) and G# minor (the vii°, from the harmonic minor).
