1,008 guitar chords with several shapes each, finger numbers, difficulty and real sound, in any tuning.
Cdim7 is a diminished seventh chord made of 4 notes: C, E♭, G♭, B𝄫. It sounds spooky and suspenseful, and you hear it in passing chords, old film scores and dramatic moments; any note of it can be the root.
The library above opens on Cdim7 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 |
| B𝄫 | 𝄫7 | diminished seventh | 9 |
Formula: 1 – ♭3 – ♭5 – 𝄫7.
x3424x8978xxxx(10)(11)(10)(11)x3121289(10)8(10)8867x7xThe fret 2 shape is the one to learn first. Once it is easy, try the shape at the 7th fret (8978xx): the same chord, higher and brighter, handy when the chords before and after it sit up the neck.
Cdim7 is not built from one major or minor scale, so it works as a colour or passing chord. Passing chords, old film scores and dramatic moments; any note of it can be the root.
C, E♭, G♭, B𝄫: the root, minor third, flat fifth, diminished seventh.
Fret 2: x3424x (low string first), rated Easy.
Cdim7 has B𝄫. Cdim7 sounds spooky and suspenseful; Cdim sounds tense and unstable.
No. The easiest shape is rated Easy and needs 4 fingers.