1,008 guitar chords with several shapes each, finger numbers, difficulty and real sound, in any tuning.
Gdim is a diminished chord made of 3 notes: G, B♭, D♭. It sounds tense and unstable, and you hear it in passing chords between two others, and the vii chord of a major key. It is the vii° chord of A♭ major and turns up in 1 other key.
The library above opens on Gdim with 13 shapes up and down the neck. Tap a shape to hear it, or play it one string at a time.
| Note | Degree | Interval from G | Semitones |
|---|---|---|---|
| G | 1 | root | 0 |
| B♭ | ♭3 | minor third | 3 |
| D♭ | ♭5 | diminished fifth | 6 |
Formula: 1 – ♭3 – ♭5.
31x02x3453xxx(10)(11)(12)(11)xxx532xxx56x6xxx(12)(11)9The open position shape is the one to learn first. Once it is easy, try the shape at the 10th fret (x(10)(11)(12)(11)x): the same chord, higher and brighter, handy when the chords before and after it sit up the neck.
Gdim belongs to 2 keys: vii° in A♭ major, ii° in F minor. In A♭ major, try I–V–vi–IV: A♭ – E♭ – Fm – D♭.
G, B♭, D♭: the root, minor third, flat fifth.
Open position: 31x02x (low string first), rated Easy.
Gdim has the same notes where Gdim7 has F♭. Gdim sounds tense and unstable; Gdim7 sounds spooky and suspenseful.
No. The easiest shape is rated Easy and needs 3 fingers.