1,008 guitar chords with several shapes each, finger numbers, difficulty and real sound, in any tuning.
Cdim is a diminished chord made of 3 notes: C, E♭, G♭. 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 D♭ major and turns up in 1 other key.
The library above opens on Cdim 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 C | Semitones |
|---|---|---|---|
| C | 1 | root | 0 |
| E♭ | ♭3 | minor third | 3 |
| G♭ | ♭5 | diminished fifth | 6 |
Formula: 1 – ♭3 – ♭5.
x3454x89(10)8xxxxx542xx(10)87xxx(10)(11)x(11)x31x12The fret 3 shape is the one to learn first. Once it is easy, try the shape at the 8th fret (89(10)8xx): the same chord, higher and brighter, handy when the chords before and after it sit up the neck.
Cdim belongs to 2 keys: vii° in D♭ major, ii° in B♭ minor. In D♭ major, try I–V–vi–IV: D♭ – A♭ – B♭m – G♭.
C, E♭, G♭: the root, minor third, flat fifth.
Fret 3: x3454x (low string first), rated Easy.
Cdim has the same notes where Cdim7 has B𝄫. Cdim sounds tense and unstable; Cdim7 sounds spooky and suspenseful.
No. The easiest shape is rated Easy and needs 4 fingers.