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G#13sus4 — G# dominant thirteenth suspended fourth chord

A dominant thirteenth chord with the third replaced by the fourth. The ninth and the thirteenth are both kept, so the chord is built on five or six notes.

Symbol
G#13sus4
Root
G#
Quality
Dominant thirteenth suspended fourth
Family
suspended
Notes
G# C# D# F# E# A#
Degree formula
1 4 5 b7 13 9
Semitones from the root
0 2 5 7 9 10
Distinct pitch classes
6
Interval structure
Stacked from the root: 5 semitones, 2 semitones, 3 semitones, 11 semitones, 5 semitones
Notation
Written 13sus4. A suspended dominant with the full upper structure, used where the dominant should not commit to major or minor.
Key
G# · Ab major / F minor key signature

Formula

The chord tones in order from the root, with the interval each one forms above it.

DegreeNoteSemitonesInterval from the root
1G#0Perfect unison
4C#5Perfect fourth
5D#7Perfect fifth
b7F#10Minor seventh
13E#9Major sixth
9A#2Major second

Inversions

An inversion is the same set of notes with a different one in the bass. The last column gives the distance of each note above the bass note, in semitones.

InversionBass noteDegree in the bassNotes above the bassSemitones above the bass
root positionG#1G# – C# – D# – F# – E# – A#0 5 7 10 9 2
first inversionC#4C# – D# – F# – E# – A# – G#0 2 5 4 9 7
second inversionD#5D# – F# – E# – A# – G# – C#0 3 2 7 5 10
third inversionF#b7F# – E# – A# – G# – C# – D#0 11 4 2 7 9
fourth inversionE#13E# – A# – G# – C# – D# – F#0 5 3 8 10 1
fifth inversionA#9A# – G# – C# – D# – F# – E#0 10 3 5 8 7

Playable voicings

These shapes were found by searching the fretboard of a standard-tuned guitar (E A D G B E) rather than copied from a chord book. The search allows every string to sound or to be muted, rejects any shape with a muted string between two sounding strings, rejects any shape whose fretted notes span more than four frets (a five-fret window), requires every chord tone to be present, and then sorts what remains with root-position shapes first and the most compact, lowest shapes next. The shapes shown are the first six of that ordering; other orderings are possible at the same frets.

#Shape (low string first)NotesDegreesBassSpan (frets)Sounding strings
14-4-3-3-4-2G# C# F A# D# F#1 4 13 9 5 b7G#26
24-6-4-6-6-6G# D# F# C# F A#1 5 b7 4 13 9G#26
34-4-4-3-4-1G# C# F# A# D# F1 4 b7 9 5 13G#36
44-6-3-3-2-2G# D# F A# C# F#1 5 13 9 4 b7G#46
54-6-3-6-7-6G# D# F C# F# A#1 5 13 4 b7 9G#46
64-4-4-8-6-6G# C# F# D# F A#1 4 b7 5 13 9G#46

Shape numbers run from the lowest string to the highest, so the left-hand number is the sixth string (low E) in standard tuning. Multiple shapes are listed because a chord can be voiced several ways, and because a lower position is not always the better sounding one.

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