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Chord · Reference entry

G♯ mi11♭5

mi11♭5 · G♯ – B – D – F♯ – A♯ – C♯ · intervals P1-m3-d5-m7-M9-P11

The G♯ mi11♭5 chord (G♯m11♭5) contains the notes G♯, B, D, F♯, A♯, and C♯. Its interval formula is R-m3-d5-m7-M9-P11. A minor 11th with a lowered 5th — half-diminished extended, a sophisticated minor-key ii chord.

A♭ mi11♭5
This is the same chord as A♭ mi11♭5 — the same keys on the keyboard, spelled with flats.

At the keyboard

G# · B · D · F# · A# · C#
Flashcards · Chord
Three questions on G♯ mi11♭5
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G♯m11♭5

The G♯ mi11♭5 chord is a six-note chord made up of G♯, B, D, F♯, A♯, and C♯. It is built from a root, minor third, diminished fifth, minor seventh, major ninth, and perfect eleventh.

Construction

G♯ mi11♭5 = Root + Minor 3rd + Diminished 5th + Minor 7th + Major 2nd + Perfect 4th = G♯ · B · D · F♯ · A♯ · C♯
NoteIntervalDegree
G♯Root1
BMinor 3rd♭3
DDiminished 5th♭5
F♯Minor 7th♭7
A♯Major 2nd9
C♯Perfect 4th11

Key Signature

A chord has no key signature of its own, but the G♯ mi11♭5 is the tonic (I) chord of G# Major, whose key signature has 4 flats (B♭, E♭, A♭, D♭).

B♭E♭A♭D♭

Order of flats

Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.

BEADGCF

Mnemonic: Battle Ends And Down Goes Charles’ Father

Chords in the Key of G♯ Major

These are the triads built on each degree of the G♯ major scale:

C1C2C3C4B♯C6C7C8G♯D♯
IG♯ Major (major)
DegreeNumeralChordQuality
1IG♯ MajorMajor
2iiA♯ MinorMinor
3iiiC MinorMinor
4IVC♯ MajorMajor
5VD♯ MajorMajor
6viF MinorMinor
7vii°G DiminishedDiminished

G♯ mi11♭5 — Frequently Asked Questions

What is the G♯ mi11♭5 chord on piano?
The G♯ mi11♭5 chord contains the notes G♯ – B – D – F♯ – A♯ – C♯. On piano, play these notes together to sound the chord.
What notes are in the G# mi11♭5 chord?
The G# mi11♭5 chord (G#mi11♭5) contains 6 notes: G#, B, D, F#, A#, C#. Formula: R-m3-d5-m7-M9-P11.
How is G#mi11♭5 used in music?
G#mi11♭5 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for G#mi11♭5?
G#mi11♭5 uses scale degrees 1-b3-b5-b7-9-11, giving it its distinctive sound.

Related Tools

Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.

References & Further Reading

The note names, intervals, fingering, and harmony on this chord page are grounded in the following sources. Public domain treatises and scores are linked to their full text; primary data is piano.org's own interval-derived reference dataset — continuously maintained and human-verified, with no fixed publication date.

  1. 1

    Riemann, Hugo(1896)

    Harmony Simplified (English translation)

    Public domain treatise
  2. 2

    George Grove (ed.)(1900)

    A Dictionary of Music and Musicians

    Public domain treatise
  3. 3

    Jadassohn, Salomon(1883)

    A Manual of Harmony

    Public domain treatise
  4. 4

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Entry reviewed and maintained by Justin Evans. Corrections are read and applied.Report an error

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