semicord

Eb13 Eb dominant thirteenth chord

Notes
Eb G Bb Db F Ab C
Formula
1 3 5 b7 9 11 13
Semitones
0 4 7 10 14 17 21 above the root
Also written
D#13 (D# F## A# C# E# G# B#)
Other symbols
Ebdom13

Eb to G is a major third (4 semitones), G to Bb is a minor third (3 semitones), Bb to Db is a minor third (3 semitones), Db to F is a major third (4 semitones), F to Ab is a minor third (3 semitones), Ab to C is a major third (4 semitones). A dominant seventh with the thirteenth, C, on top. The full chord has seven notes and a guitar has six strings, so players keep the root, the third G, the seventh Db and the thirteenth C, and leave out the fifth, the ninth and above all the eleventh Ab, which clashes with the third. The thirteenth is the sixth an octave up; it is a 13 and not a 6 chord because the seventh is there.

Eb13 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C6D6E6F6G6A6B6C#4Eb4F#4Ab4Bb4Db5Eb5F#5Ab5Bb5C#6Eb6F#6Ab6Bb6C4EbGBbC5DbFAbCC6

Root position from Eb4: Eb4, G4, Bb4, Db5, F5, Ab5, C6. Middle C is C4.

Eb13 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×EbEb×DbDbGGCC
A-shape, root on the A string at fret 6
x 6 x 6 8 8 (low E to high e)
Sounds Eb3 Db4 G4 C5, fifth, ninth and eleventh left out
11frEbEb×DbDbGGCC×
E-shape, root on the E string at fret 11
11 x 11 12 13 x (low E to high e)
Sounds Eb3 Db4 G4 C5, fifth, ninth and eleventh left out

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 dominant thirteenth chords on other roots.

Inversions of Eb13

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 G Bb Db F Ab CEb13
1st inversionG Bb Db F Ab C EbEb13/G
2nd inversionBb Db F Ab C Eb GBbm13 (also read as Eb13/Bb)
3rd inversionDb F Ab C Eb G BbEb13/Db
4th inversionF Ab C Eb G Bb DbEb13/F
5th inversionAb C Eb G Bb Db FEb13/Ab
6th inversionC Eb G Bb Db F AbEb13/C

Where Eb13 fits

Eb13 is V13 in Ab major. Played with its third, seventh and thirteenth (G, Db, C) over the root, it is the standard dominant chord of jazz and soul, resolving to Ab.