Ab Dominant Thirteen Sharp Eleventh (Ab13(#11)) chords on guitar
In Ab13(#11) (Ab thirteenth sharp eleven) the notes are Ab, C, Eb, Gb, Bb, D and F, built by stacking thirds on Ab up to the thirteenth.
The D is the raised eleventh, a tritone above the root. It fits the Ab Lydian Dominant scale, because the chord's seven notes are exactly the seven notes of that scale. You may meet it as a dominant chord in jazz chord progressions.
As a dominant chord it usually resolves to the chord a fourth above Ab, which is Db. The major third C and the minor seventh Gb supply the tritone behind that move.
Ab 13th with sharp 11th guitar chord is also written as Ab13(#11), Ab13#11 or Ab13+11.
Notes in the Ab 13(#11) chord:
How to create the Dominant Thirteen Sharp Eleventh chord:
Formula: 1 3 5 b7 9 #11 13
Ab 13(#11) Chord Interactive Fretboard
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Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
What notes are in Ab13(#11)?
Ab13(#11) contains Ab, C, Eb, Gb, Bb, D and F. They are the root, major third, perfect fifth, minor seventh, ninth, sharp eleventh and thirteenth.
What is the enharmonic spelling of Ab13(#11)?
It is G#13(#11), spelled G#, B#, D#, F#, A#, C## and E#. The two names sound alike, but the flat version has no double sharp.
Why is the sharp eleventh in Ab13(#11) a natural D?
The perfect eleventh over Ab is Db. Raising it by a half step gives D natural, so the sharp eleventh needs no accidental sign.
Which scale works over Ab13(#11)?
The Ab Lydian Dominant scale has Ab, Bb, C, D, Eb, F and Gb. It contains every chord tone and nothing else.
