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Ddim(Diminished Chord)

Built from two stacked minor thirds. Creates maximum tension and instability.

Notes
D – F – G#
Intervals (semitones)
0 – 3 – 6
Type
Triad

🎹 Ddim on Piano

Press highlighted keys simultaneously to play the Ddim chord.

R
D(Root (R))
2
F(Minor 3rd (♭3))
3
G#(Tritone (♭5))

🎸 Ddim on Guitar

The Ddim chord uses notes D, F, G#. Build a voicing by finding these notes on any strings — root on the 6th string is a common starting point for barre chord shapes.

Interval Analysis

DegreeInterval NameSemitonesNote in D
RootRoot (R)0D
3rdMinor 3rd (♭3)3F
5thTritone (♭5)6G#

About the D Diminished Chord

The Ddim chord (D Diminished) consists of 3 notes: D, F, G#. Built from two stacked minor thirds. Creates maximum tension and instability.

To build any diminished chord, apply intervals of 0, 3, 6 semitones above the root. Starting from D: the notes land on D, F, G#.

Playing Ddim on Piano

Press D, F, G# simultaneously. In root position, D is lowest. First inversion places F in the bass for a lighter sound; second inversion uses G# as the bass note.

Common Chord Progressions Using Ddim

  • I–IV–V: Ddim – Gdim – Adim (blues and rock)
  • I–V–vi–IV: Ddim – A – Bm – G (pop staple)
  • I–vi–IV–V: Ddim – Bm – G – A (50s progression)

The Ddim Chord in Context

As a diminished chord, Ddim is the tonic (I) in the key of D major. It also appears as the IV chord in A major, and as the V chord in G major — making it one of the most important chords across all of Western music.

Other D Chords

D
Major
Dm
Minor
D7
Dominant 7th
Dmaj7
Major 7th
Dm7
Minor 7th
Daug
Augmented

Diminished Chord in All 12 Keys

CdimC#dimDdimD#dimEdimFdimF#dimGdimG#dimAdimA#dimBdim
🎹 Virtual Piano
Play Ddim on piano
🎸 Virtual Guitar
See on the fretboard
🎵 D Scale
Notes that fit Ddim
🎶 Songs
Find songs using Ddim

FAQ

Ddim Chord — Frequently Asked Questions

What notes are in the Ddim chord?
The D Diminished chord contains: D, F, G#. These notes are derived by applying the diminished interval formula (0–3–6 semitones) to the root note D.
What is the Ddim chord used for?
Built from two stacked minor thirds. Creates maximum tension and instability. The Ddim chord is used across pop, rock, jazz, and classical music. As the I chord in the key of D major, it functions as the most stable resting point in progressions.
How do you play Ddim on piano?
On piano, play D, F, G# simultaneously. In root position, D is the lowest note. Inversions move the bass note up — first inversion has F lowest, second inversion has G# lowest.
How many notes are in a diminished chord?
A diminished chord has 3 notes: D, F, G# (in D). It is a triad — the most fundamental chord type.
What is the difference between D major and D minor?
The D major chord (D–F#–A) uses a major third (4 semitones), giving it a bright, happy sound. The D minor chord (D–F–A) uses a minor third (3 semitones), giving it a darker, emotional sound.
What key does Ddim belong to?
Ddim naturally serves as the I chord in the key of D major. It also appears as IV in the key of A major, and as V in the key of G major.
Can I play Ddim on ukulele?
Yes. The ukulele uses GCEA tuning with 4 strings. The Ddim chord notes (D, F, G#) can be fretted on a ukulele, though the shapes differ from guitar due to the 4-string layout and shorter scale.
What chords go well with Ddim?
In the key of D major, Ddim pairs naturally with G major (IV), A major (V), and Bm (vi). The classic I–IV–V (Ddim–G–A) is the foundation of blues, country, and rock.
What is a chord inversion of Ddim?
An inversion places a non-root note in the bass. Ddim root position: D in bass. First inversion: F in bass. Second inversion: G# in bass. Inversions create smoother bass line movement without changing the harmony.
How do I memorize the notes in a diminished chord?
Remember the formula: 0–3–6 semitones from root. For Ddim: start on D, add 3 semitones, then 6 semitones. Practicing this across all 12 roots builds instant recognition of any diminished chord.