semicord

Eb7sus4 Eb seventh suspended fourth chord

Notes
Eb Ab Bb Db
Formula
1 4 5 b7
Semitones
0 5 7 10 above the root
Also written
D#7sus4 (D# G# A# C#)
Other symbols
Eb7sus

Eb to Ab is a perfect fourth (5 semitones), Ab to Bb is a major second (2 semitones), Bb to Db is a minor third (3 semitones). A dominant seventh with the fourth, Ab, in place of the third. Like any sus chord it is neither major nor minor. With Db in the bass the same four keys read as Eb7sus4/Db.

Eb7sus4 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4Bb4Db5Eb5F#5Ab5Bb5C4EbAbBbC5Db

Root position from Eb4: Eb4, Ab4, Bb4, Db5. Middle C is C4.

Eb7sus4 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 Eb as its lowest note.

6fr×EbEbBbBbDbDbAbAbBbBb
A-shape barre, root on the A string at fret 6
x 6 8 6 9 6 (low E to high e)
Sounds Eb3 Bb3 Db4 Ab4 Bb4
11frEbEbBbBbDbDbAbAbBbBbEbEb
E-shape barre, root on the E string at fret 11
11 13 11 13 11 11 (low E to high e)
Sounds Eb3 Bb3 Db4 Ab4 Bb4 Eb5

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 Eb7sus4

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 positionEb Ab Bb DbEb7sus4
1st inversionAb Bb Db EbEb7sus4/Ab
2nd inversionBb Db Eb AbBbm11 (also read as Eb7sus4/Bb)
3rd inversionDb Eb Ab BbEb7sus4/Db

Where Eb7sus4 fits

Eb7sus4 is V7sus4 in Ab major. The usual move is Eb7sus4 → Eb7: the fourth, Ab, falls a half step to the third G while the seventh Db stays. In modal jazz and gospel it is often left unresolved.