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Guitar scale companion

Gb Ionian Mode

Learn the Gb Ionian mode (major) on guitar. Explore notes, intervals, and fretboard positions with an interactive chart.

1Gb2Ab3Bb4Cb5Db6Eb7F

Full fretboard map

Every Gb Ionian Mode note across the neck, with roots highlighted for quick orientation.

Interactive
CAGED

Five Gb Ionian (Major) positions

These static CAGED boxes show the same scale in practical four- to five-fret areas before you explore the full neck.

E shape

Gb Ionian (Major) uses F# major CAGED box locations; Gb remains the modal root.

Gb Ionian (Major) E shape positionFrets 1 through 5 for the E shape.EADGBe1234571234567123456712
E shape tab (1-5)
e |-1--2-----4---|
B |----2-----4---|
G |-1-----3--4---|
D |-1-----3--4---|
A |-1--2-----4---|
E |-1--2-----4---|

D shape

Gb Ionian (Major) uses F# major CAGED box locations; Gb remains the modal root.

Gb Ionian (Major) D shape positionFrets 3 through 7 for the D shape.EADGBe3456723456712345671234
D shape tab (3-7)
e |----4-----6--7|
B |----4-----6--7|
G |-3--4-----6---|
D |-3--4-----6---|
A |----4-----6---|
E |----4-----6--7|

C shape

Gb Ionian (Major) uses F# major CAGED box locations; Gb remains the modal root.

Gb Ionian (Major) C shape positionFrets 6 through 10 for the C shape.EADGBe67891034567123456712345
C shape tab (6-10)
e |-6--7-----9---|
B |-6--7-----9---|
G |-6-----8------|
D |-6-----8--9---|
A |-6-----8--9---|
E |-6--7-----9---|

A shape

Gb Ionian (Major) uses F# major CAGED box locations; Gb remains the modal root.

Gb Ionian (Major) A shape positionFrets 8 through 12 for the A shape.EADGBe891011125671234567123456
A shape tab (8-12)
e |----9----11---|
B |----9----11-12|
G |-8----10-11---|
D |-8--9----11---|
A |-8--9----11---|
E |----9----11---|

G shape

Gb Ionian (Major) uses F# major CAGED box locations; Gb remains the modal root.

Gb Ionian (Major) G shape positionFrets 10 through 14 for the G shape.EADGBe101112131467123456712345671
G shape tab (10-14)
e |---11----13-14|
B |---11-12----14|
G |10-11----13---|
D |---11----13---|
A |---11----13-14|
E |---11----13-14|

Scale Degrees

DegreeIntervalNote
1RootGb
2M2Ab
3M3Bb
4P4Cb
5P5Db
6M6Eb
7M7F

Diatonic Chords

DegreeChordType
IGbmaj7Major 7th
iiAbm7Minor 7th
iiiBbm7Minor 7th
IVCbmaj7Major 7th
VDb7Dominant 7th
viEbm7Minor 7th
viiøFm7b5Half-Diminished
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