Gb+(#11) chord - Gb Augmented Fifth Sharp Eleventh added - guitar chord chart
To play Gb+(#11), the Gb augmented sharp eleven chord, you need Gb, Bb, D and C, the root, major third, raised fifth and sharp eleventh. A scale that covers every chord tone is the Gb whole-tone scale, which is where to start when you improvise.
The augmented triad underneath is symmetrical, so its three notes divide the octave into three equal parts. The sharp eleventh sits a tritone above the root, six semitones up. It sounds identical to F#+(#11), the same pitches written with the other spelling.
The natural eleventh would clash with the major third, which is why the raised eleventh is the usable colour.
Gb augmented with sharp 11th guitar chord is also written as Gb+(#11), Gbaug(#11), Gb+#11 or Gbaug#11.
Notes of the Gb +(#11) chord:
How the Augmented Fifth Sharp Eleventh added chord is built:
Formula: 1 3 #5 #11
Gb +(#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 make up Gb+(#11)?
Gb+(#11) is spelled Gb, Bb, D and C. That gives a root, a major third, a raised fifth and a sharp eleventh. The C is the raised fourth, six semitones from Gb.
Is Gb+(#11) the same as F#+(#11)?
They are the same sound. F#+(#11) is spelled F#, A#, C## and B#, which is awkward. Gb+(#11) is the easier form to read.
Which scale covers Gb augmented sharp eleven?
The Gb Whole-Tone Scale (Gb, Ab, Bb, C, D, Fb) contains all four notes of the chord. Each chord tone belongs to it.
How does Gb+(#11) relate to an augmented triad?
Gb, Bb and D form an augmented triad, with two major thirds stacked. The chord adds C, the sharp eleventh, so it has four notes and no seventh.
