Ab+(#11) Guitar Chord Diagrams | Ab Augmented Fifth Sharp Eleventh added
Spelled Ab, C, E and D, Ab+(#11) is the Ab augmented sharp eleven chord, with the root, major third, raised fifth and sharp eleventh above its root.
The natural eleventh would clash with the major third, which is why the raised eleventh is the usable colour. For lead lines, reach for the Ab whole-tone scale: it holds each note of the chord, so every chord tone is available. The logic of stacking thirds is explained in how chords are built.
Without a seventh it lacks the pull of a dominant seventh chord, so it works as a colour chord.
Ab augmented with sharp 11th guitar chord is also written as Ab+(#11), Abaug(#11), Ab+#11 or Abaug#11.
Notes in the Ab +(#11) chord:
Chord formula for the Augmented Fifth Sharp Eleventh added chord:
Formula: 1 3 #5 #11
Ab +(#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 Ab+(#11)?
Ab+(#11) is spelled Ab, C, E and D. That makes a root, a major third, a raised fifth and a sharp eleventh. No double accidentals are needed.
How far is the sharp eleventh from the root in Ab augmented sharp eleven?
The D lies six semitones from Ab, which is a tritone. It is the fourth note raised by one semitone, and it adds to the augmented triad Ab, C and E.
Is Ab+(#11) the same as G#+(#11)?
They share the same pitches. G#+(#11) is spelled G#, B#, D## and C##, which is awkward to read. Ab+(#11) is the cleaner spelling.
Which scale suits Ab augmented sharp eleven?
The Ab Whole-Tone Scale (Ab, Bb, C, D, E, Gb) contains all four chord notes. It is a good source of melody notes.
