semicord

D7sus4 D seventh suspended fourth chord

Notes
D G A C
Formula
1 4 5 b7
Semitones
0 5 7 10 above the root
Other symbols
D7sus

D to G is a perfect fourth (5 semitones), G to A is a major second (2 semitones), A to C is a minor third (3 semitones). A dominant seventh with the fourth, G, in place of the third. Like any sus chord it is neither major nor minor. With C in the bass the same four keys read as D7sus4/C.

D7sus4 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4Bb4C#5Eb5F#5Ab5Bb5C4DGACC5

Root position from D4: D4, G4, A4, C5. Middle C is C4.

D7sus4 on the guitar

Standard tuning (E A D G B E). Strings run low E on the left to high e on the right, frets downwards; × is a muted string, ○ an open string, and each dot shows the note it sounds, with the root in blue-green. Every shape below has D as its lowest note.

××DAACCGG
Open position
x x 0 2 1 3 (low E to high e)
Sounds D3 A3 C4 G4
5fr×DDAACCGGAA
A-shape barre, root on the A string at fret 5
x 5 7 5 8 5 (low E to high e)
Sounds D3 A3 C4 G4 A4
10frDDAACCGGAADD
E-shape barre, root on the E string at fret 10
10 12 10 12 10 10 (low E to high e)
Sounds D3 A3 C4 G4 A4 D5

The E-shape and A-shape grips are movable: an E-shape chord's root is the note under your first finger on the low E string, an A-shape chord's root is the note on the A string. Slide the same grip up or down to play seventh suspended fourth chords on other roots.

Inversions of D7sus4

An inversion puts a note other than the root in the bass. The name is what semicord's chord finder calls those notes played bottom to top; a slash name like C/E means a C chord with E in the bass.

PositionNotes, bass firstNamedListen
Root positionD G A CD7sus4
1st inversionG A C DD7sus4/G
2nd inversionA C D GAm11 (also read as D7sus4/A)
3rd inversionC D G AD7sus4/C

Where D7sus4 fits

D7sus4 is V7sus4 in G major. The usual move is D7sus4 → D7: the fourth, G, falls a half step to the third F# while the seventh C stays. In modal jazz and gospel it is often left unresolved.