G♭m(maj7): F♯/G♭ Minor Major 7th Piano Chord

Root position: either hand, fingers low note to high
Hand	Notes	Fingers
Right	G♭, B♭♭, D♭, F	2-3-4-5
Left	G♭, B♭♭, D♭, F	5-4-3-2

Scale degree, note, and interval measured from the root.
Degree	Note	Interval from root	Semitones
1	G♭	Perfect unison	0
♭3	B♭♭	Minor third	3
5	D♭	Perfect fifth	7
7	F	Major seventh	11

Construction

G♭ Minor Major 7th = Root + Minor 3rd + Perfect 5th + Major 7th = G♭, B♭♭, D♭, F

Note	Interval	Degree
G♭	Root	1
B♭♭	Minor 3rd	♭3
D♭	Perfect 5th	5
F	Major 7th	7

Fingering

Note	Key color	Right hand	Left hand
G♭	black	index finger (2)	little finger (5)
B♭♭	white	middle finger (3)	ring finger (4)
D♭	black	ring finger (4)	middle finger (3)
F	white	little finger (5)	index finger (2)

Right hand: index finger (2) on G♭, middle finger (3) on B♭♭, ring finger (4) on D♭, little finger (5) on F.

Left hand: little finger (5) on G♭, ring finger (4) on B♭♭, middle finger (3) on D♭, index finger (2) on F.

G♭ Minor Major 7th Inversions

Root position
G♭ – B♭♭ – D♭ – F
1st inversion (G♭m(maj7)/B♭♭)
B♭♭ – D♭ – F – G♭
2nd inversion (G♭m(maj7)/D♭)
D♭ – F – G♭ – B♭♭
3rd inversion (G♭m(maj7)/F)
F – G♭ – B♭♭ – D♭

Key Signature

A chord has no key signature of its own, but the G♭ Minor Major 7th is the tonic (i) chord of G♭ Minor, which shares the signature of its relative major, A Major: 3 sharps (F♯, C♯, G♯).

F♯C♯G♯

Order of sharps

Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.

F♯C♯G♯D♯A♯E♯B♯

Mnemonic: Father Charles Goes Down And Ends Battle

Chords in the Key of G♭ Minor

These are the triads built on each degree of G♭ Minor:

i — G♭ Minor (minor)

Degree	Numeral	Chord	Quality
1	i	G♭ Minor	Minor
2	ii°	A♭ Diminished	Diminished
3	III	B♭♭ Major	Major
4	iv	C♭ Minor	Minor
5	v	D♭ Minor	Minor
6	VI	E♭♭ Major	Major
7	VII	F♭ Major	Major

Looking for G♭m7? See the G♭ minor 7th piano chord.

G♭ Minor Major 7th : Frequently Asked Questions

What notes are in G♭mMaj7?

G♭mMaj7 contains G♭, B♭♭, D♭ and F. The formula is 1, ♭3, 5, 7.

How do you play G♭mMaj7 on piano?

Play G♭, B♭♭, D♭ and F together. Right hand fingers 2, 3, 4, 5; left hand 5, 4, 3, 2. G♭ and D♭ are black keys; B♭♭ and F are white.

What are the inversions of G♭mMaj7?

4 positions: root position G♭ B♭♭ D♭ F, G♭mMaj7/B♭♭, G♭mMaj7/D♭, G♭mMaj7/F.

What is the difference between G♭mMaj7 and G♭m?

Drops F. 3 of the notes are shared.

What is an easy G♭mMaj7 for small hands?

The close, second inversion voicing, D♭4 F4 G♭4 B♭♭4, spans 8 semitones or about 110 mm.

What are the frequencies of G♭mMaj7?

From G♭3 at A440 in 12-TET: 185.00, 220.00, 277.18, 349.23 Hz.

What is the set class of G♭mMaj7?

Prime form (0148), Forte 4-19, interval vector <101310>.

How do I transpose G♭mMaj7 to another key?

Keep the 1, ♭3, 5, 7 formula on the new root. CmMaj7 is C, E♭, G, B; C♯mMaj7 is C♯, E, G♯, B♯.

Is F♯mMaj7 the same as G♭mMaj7?

Enharmonically yes: the same piano keys and the same sound, spelled differently.

G♭ Minor Major 7th in detail

Exact

Every pitch class is present and nothing outside the chord is added.

Type	Notes	Semitones	Span	Omissions and additions	Set relation
Close, root position	G♭3 B♭♭3 D♭4 F4	11	151 mm	none	identical
Close, first inversion	B♭♭3 D♭4 F4 G♭4	9	124 mm	none	identical
Close, second inversion	D♭4 F4 G♭4 B♭♭4	8	110 mm	none	identical
Close, third inversion	F4 G♭4 B♭♭4 D♭5	8	110 mm	none	identical
Drop 2	D♭3 G♭3 B♭♭3 F4	16	220 mm	none	identical
Drop 3	B♭♭2 G♭3 D♭4 F4	20	275 mm	none	identical
Drop 2 and 4	G♭2 D♭3 B♭♭3 F4	23	316 mm	none	identical

Reduced

A subset of the pitch classes: the identity is incomplete rather than altered.

Type	Notes	Semitones	Span	Omissions and additions	Set relation
Shell, root 7 ♭3	G♭2 F3 B♭♭3	15	206 mm	omits D♭	subset
Guide tones, ♭3 and 7	B♭♭3 F4	8	110 mm	omits G♭ and D♭	subset
Rootless close	B♭♭3 D♭4 F4	8	110 mm	omits G♭	subset

Spans are measured centre to centre at a 165 mm octave (standard keyboard geometry).

Position	Bass note	Notes in order	Figured bass	Semitones	Span
Root position	G♭	G♭3, B♭♭3, D♭4, F4	7	11	151 mm
First inversion: G♭mMaj7/B♭♭	B♭♭	B♭♭3, D♭4, F4, G♭4	6/5	9	124 mm
Second inversion: G♭mMaj7/D♭	D♭	D♭4, F4, G♭4, B♭♭4	4/3	8	110 mm
Third inversion: G♭mMaj7/F	F	F4, G♭4, B♭♭4, D♭5	4/2	8	110 mm

One position per chord tone in the bass. Spans are for close position: voiced inversions appear under Voicings.

Change one note

Chords a single note away, and what moving that note does.

Chord	Change	Formula	Common tones
G♭m	drops F	1 ♭3 5	3
G♭maj7	B♭♭ becomes B♭	1 3 5 7	3
G♭m7	F becomes F♭	1 ♭3 5 ♭7	3
G♭m6	F becomes E♭	1 ♭3 5 6	3
G♭maj9	B♭♭ becomes B♭, A♭	1 3 5 7 9	3
G♭m9	F becomes F♭, A♭	1 ♭3 5 ♭7 9	3
G♭	B♭♭, F becomes B♭	1 3 5	2
G♭dim	D♭, F becomes D♭♭	1 ♭3 ♭5	2
G♭sus2	B♭♭, F becomes A♭	1 2 5	2
G♭sus4	B♭♭, F becomes C♭	1 4 5	2
G♭7	B♭♭, F becomes B♭, F♭	1 3 5 ♭7	2
G♭m7♭5	D♭, F becomes D♭♭, F♭	1 ♭3 ♭5 ♭7	2

Frequencies

Note	MIDI	Frequency
G♭3	54	185.00 Hz
B♭♭3	57	220.00 Hz
D♭4	61	277.18 Hz
F4	65	349.23 Hz

Reference pitch A440, 12-TET, close root position.

Set theory: prime form, Forte number, interval vector

Absolute pitch class set: {6, 9, 1, 5}
Normal order: [5, 6, 9, 1]
Prime form: (0148)
Forte number: 4-19
Interval vector: <101310>

Pair	Interval	Semitones	Interval class
G♭ to B♭♭	Minor third	3	3
G♭ to D♭	Perfect fifth	7	5
G♭ to F	Major seventh	11	1
B♭♭ to D♭	Major third	4	4
B♭♭ to F	Minor sixth	8	4
D♭ to F	Major third	4	4

Where these facts come from

Every value on this page is derived from the note formula for a minor major 7th applied to the root G♭, using standard music theory. Nothing here is hand-entered per chord, so the notes, intervals, inversions and frequencies cannot drift out of agreement with each other. Pitches assume 12-TET at A440.

G♭ Minor Major 7th

Fingerings

G♭ Minor Major 7th: notes and degrees