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Guitar scale companion

Bb Altered Scale

Learn the Bb Altered scale (super locrian) on guitar. Explore notes, intervals, and fretboard positions with an interactive chart.

Notes
Bb, Cb, C#, D, E, Gb, Ab
Steps
H-W-H-W-W-W-W
Sharps and flats
Bb, Cb, C#, Gb, Ab
All 5 positions
A shape (frets 1-5); G shape (frets 3-7); E shape (frets 6-10); D shape (frets 6-10); C shape (frets 11-15)
1Bbb9Cb#9C#3D#11Eb13Gbb7Ab

Full fretboard map

Every Bb Altered Scale note across the neck, with roots highlighted for quick orientation.

Interactive

Frets 0–24. Select a position or tap a note to hear it.

ECbGDAEGbAbBbCbC#DEGbAbBbCbC#DEBbCbC#DEGbAbBbCbC#DEGbAbEGbAbBbCbC#DEGbAbBbCbC#DAbBbCbC#DEGbAbBbCbC#DEGbC#DEGbAbBbCbC#DEGbAbBbCbGbAbBbCbC#DEGbAbBbCbC#DE123456789101112131415161718192021222324
CAGED

Five Bb Altered (Super Locrian) positions

These CAGED-family boxes show the same scale in complete practical areas before you explore the full neck. Each one surrounds a CAGED chord shape; see how the five shapes connect in the CAGED system.

A shape · frets 1-5

Bb Altered (Super Locrian), A shape: the box around the A-shape Bb chord, taken from the A box of B Melodic Minor.

Bb Altered (Super Locrian) A shape positionFrets 1 through 5 for the A shape.EADGBe123451b7b13b9#11#9b1313b7#9b13b9b7#11
A shape tab (1-5)
e |----2-----4---|
B |----2--3-----5|
G |-1-----3--4---|
D |----2-----4---|
A |-1--2-----4---|
E |----2-----4---|

G shape · frets 3-7

Bb Altered (Super Locrian), G shape: the box around the G-shape Bb chord, taken from the G box of B Melodic Minor.

Bb Altered (Super Locrian) G shape positionFrets 3 through 7 for the G shape.EADGBe3456713b7#9b13b9b73#111b7#91b9#11b13b9
G shape tab (3-7)
e |----4-----6--7|
B |-3-----5-----7|
G |-3--4-----6---|
D |----4-----6---|
A |----4--5-----7|
E |----4-----6--7|

E shape · frets 6-10

Bb Altered (Super Locrian), E shape: the box around the E-shape Bb chord, taken from the E box of B Melodic Minor.

Bb Altered (Super Locrian) E shape positionFrets 6 through 10 for the E shape.EADGBe6789101b7#91b9#113b13b91#9b13b9#11b7#9
E shape tab (6-10)
e |-6--7-----9---|
B |----7-----9---|
G |-6--7-----9---|
D |-6-----8--9---|
A |----7-----9---|
E |-6--7-----9---|

D shape · frets 6-10

Bb Altered (Super Locrian), D shape: the box around the D-shape Bb chord, taken from the E box of B Melodic Minor.

Bb Altered (Super Locrian) D shape positionFrets 6 through 10 for the D shape.EADGBe6789101b7#91b9#113b13b91#9b13b9#11b7#9
D shape tab (6-10)
e |-6--7-----9---|
B |----7-----9---|
G |-6--7-----9---|
D |-6-----8--9---|
A |----7-----9---|
E |-6--7-----9---|

C shape · frets 11-15

Bb Altered (Super Locrian), C shape: the box around the C-shape Bb chord, taken from the C box of B Melodic Minor.

Bb Altered (Super Locrian) C shape positionFrets 11 through 15 for the C shape.EADGBe1112131415b7#9b131#113b9#111b7b13b9#11#9b13
C shape tab (11-15)
e |---12----14---|
B |11-12----14---|
G |11----13------|
D |11-12----14---|
A |11----13-14---|
E |---12----14---|

Scale Degrees

DegreeIntervalNote
1RootBb
b9m2Cb
#9m3C#
3M3D
#11d5E
b13m6Gb
b7m7Ab
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