semicord

Db11 Db dominant eleventh chord

Notes
Db F Ab Cb Eb Gb
Formula
1 3 5 b7 9 11
Semitones
0 4 7 10 14 17 above the root
Also written
C#11 (C# E# G# B D# F#)
Other symbols
Dbdom11

Db to F is a major third (4 semitones), F to Ab is a minor third (3 semitones), Ab to Cb is a minor third (3 semitones), Cb to Eb is a major third (4 semitones), Eb to Gb is a minor third (3 semitones). All six notes stacked in thirds, 1 3 5 b7 9 11. The eleventh, Gb, sits a minor ninth above the third F and clashes with it, so in practice the third is left out: Db Ab Cb Eb Gb is how Db11 is usually played, the same notes as Db9sus4. Leave out the fifth as well and the engine hears B/C# instead (Db Cb Eb Gb), so the guitar shapes here keep Ab.

Db11 on the piano

C4D4E4F4G4A4Cb5C5D5E5F5G5A5B5Db4Eb4F#4Ab4Bb4C#5Eb5Gb5Ab5Bb5C4DbFAbCbC5EbGb

Root position from Db4: Db4, F4, Ab4, Cb5, Eb5, Gb5. Middle C is C4.

Db11 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 Db as its lowest note.

×DbDbGbGbCbCbEbEbAbAb
A-shape barre, root on the A string at fret 4
x 4 4 4 4 4 (low E to high e)
Sounds Db3 Gb3 Cb4 Eb4 Ab4, third left out
9frDbDbGbGbCbCbGbGbAbAbEbEb
E-shape barre, root on the E string at fret 9
9 9 9 11 9 11 (low E to high e)
Sounds Db3 Gb3 Cb4 Gb4 Ab4 Eb5, third 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 eleventh chords on other roots.

Inversions of Db11

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 positionDb F Ab Cb Eb GbDb11
1st inversionF Ab Cb Eb Gb DbDb11/F
2nd inversionAb Cb Eb Gb Db FDb11/Ab
3rd inversionCb Eb Gb Db F AbDb11/B
4th inversionEb Gb Db F Ab CbDb11/Eb
5th inversionGb Db F Ab Cb EbDb11/Gb

Where Db11 fits

Db11 is V11 in Gb major. The eleventh, Gb, is the same note as the fourth of a sus chord and wants to fall to the third F; that is why the third is usually left out, and why Db11 works as a softer V that delays the pull home. It often moves to Db7 before the tonic.