D♭°7

Character: suspense

  1. D♭Rtriad
  2. F♭♭3triad
  3. A𝄫♭5triad
  4. C𝄫𝄫7add
Voicings

8 ways to play D♭°7

Every voicing sits inside one of the five CAGED shapes, low to high on the neck, with its octave doublings in grey.

  • Triad note
  • Substitute
  • Added
  • Anchored root
  • Bass
  • Doubling
CC shape 3rd inversion D♭°7/C𝄫
1 2 3 4 R ♭5 ♭3 𝄫7

Frets x 1 2 0 2 xNotes C𝄫 F♭ A𝄫 D♭Intervals 𝄫7 ♭3 ♭5 1Base triadD♭ diminished, 1st inversion

The 𝄫7th gets a string of its own.

CC shape 2nd inversion D♭°7/A𝄫
1 2 3 4 𝄫7 ♭3 R ♭5 ♭3 R

Frets 3 4 2 3 2 0Notes A𝄫 D♭ F♭ C𝄫Intervals ♭5 1 ♭3 𝄫7Base triadD♭ diminished, 2nd inversion

The 𝄫7th gets a string of its own.

AA shape 2nd inversion D♭°7/A𝄫
4 5 6 7 𝄫7 ♭3 R ♭5

Frets x x 5 6 5 6Notes A𝄫 D♭ F♭ C𝄫Intervals ♭5 1 ♭3 𝄫7Base triadD♭ diminished, 2nd inversion

The 𝄫7th gets a string of its own.

AA shape 2nd inversion AnchoredD♭°7
3 4 5 6 R ♭3 𝄫7 ♭5 R ♭3

Frets x 4 5 3 5 0Notes D♭ A𝄫 C𝄫 F♭Intervals 1 ♭5 𝄫7 ♭3Base triadD♭ diminished, 2nd inversion

The root drops to the string below the triad. The 𝄫7th takes the root’s string.

GG shape 3rd inversion D♭°7/C𝄫
5 6 7 8 9 R ♭5 ♭3 𝄫7

Frets 6 7 5 6 x xNotes C𝄫 F♭ A𝄫 D♭Intervals 𝄫7 ♭3 ♭5 1Base triadD♭ diminished, 1st inversion

The 𝄫7th gets a string of its own.

EE shape 3rd inversion D♭°7/C𝄫
8 9 10 11 R ♭5 ♭3 𝄫7

Frets x x 8 9 8 9Notes C𝄫 F♭ A𝄫 D♭Intervals 𝄫7 ♭3 ♭5 1Base triadD♭ diminished, 1st inversion

The 𝄫7th gets a string of its own.

EE shape 2nd inversion D♭°7/A𝄫
9 10 11 12 𝄫7 ♭3 R ♭5 ♭3 R

Frets 9 10 11 9 11 0Notes A𝄫 D♭ F♭ C𝄫Intervals ♭5 1 ♭3 𝄫7Base triadD♭ diminished, 2nd inversion

The 𝄫7th gets a string of its own.

EE shape 2nd inversion AnchoredD♭°7
8 9 10 11 R ♭3 𝄫7 ♭5 R

Frets 9 10 8 9 x xNotes D♭ A𝄫 C𝄫 F♭Intervals 1 ♭5 𝄫7 ♭3Base triadD♭ diminished, 2nd inversion

The root drops to the string below the triad. The 𝄫7th takes the root’s string.

The rules

The construction rules D♭°7 follows

  1. Start from a triad

    Root, 3rd and 5th, stacked in thirds. The 3rd makes it major or minor; the 5th makes it diminished or augmented when it moves.

  2. A third on top makes a 7th chord

    A major 7th over a major triad is maj7, a ♭7 is a dominant 7. Over minor you get m7 or m(maj7); over diminished, m7♭5 or the °7, whose 7th is lowered twice.

  3. On guitar, something has to give

    Each extension takes the string of a triad note that matters less, usually the 5th, or gets a string of its own. The root and 3rd stay: they say what the chord is.

  4. The root can move down

    When an extension needs the root’s string, the root can drop to the string below the triad: an anchored voicing keeps the bass and frees a string on top.

All the rules, with examples, in the guide to the chord library.

Diminished 7th in every key

D♭°7 chord questions

What notes are in D♭°7?

D♭°7 is spelled D♭ F♭ A𝄫 C𝄫: D♭ is the root, F♭ is the ♭3rd, A𝄫 is the ♭5th, C𝄫 is the 𝄫7th.

What is the formula of D♭°7?

1 ♭3 ♭5 𝄫7. It is a D♭ diminished triad with the 𝄫7th stacked on top.

How many ways can you play D♭°7 on guitar?

This page shows 8 voicings of D♭°7, filed under the five CAGED shapes and named by inversion, from the open position up to the 16th fret.