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Guitar scale reference

G Blues scale on guitar: five CAGED positions

The blues scale adds a flattened 5th to minor pentatonic. That chromatic tone works best as motion and tension rather than a resting point, giving familiar pentatonic shapes a sharper expressive edge.

What gives the scale its sound

Hear the flattened 5th in relation to both the 4th and 5th. Sliding or bending through that three-note area reveals its function more clearly than treating all six notes equally.

Interval formula
1 · ♭3 · 4 · ♭5 · 5 · ♭7
Notes in G
G · B♭ · C · D♭ · D · F

G Blues across the neck

The five views overlap. Root notes are highlighted; use interval labels first, then confirm the spelled notes above.

Position 1 · E shape · frets 26

234561♭34♭55♭71♭34♭5♭55♭71♭3

Ascending and descending tab

e|----------------------------------------3--6--3----------------------------------------|
B|-------------------------------2--3--6-----------6--3--2-------------------------------|
G|----------------------3--5--6-----------------------------6--5--3----------------------|
D|----------------3--5-----------------------------------------------5--3----------------|
A|-------3--4--5-----------------------------------------------------------5--4--3-------|
E|-3--6-----------------------------------------------------------------------------6--3-|

Position 2 · D shape · frets 48

45678♭34♭55♭71♭34♭55♭71♭34

Ascending and descending tab

e|-------------------------------------6--8--6-------------------------------------|
B|-------------------------------6--8-----------8--6-------------------------------|
G|----------------------5--6--7-----------------------7--6--5----------------------|
D|----------------5--8-----------------------------------------8--5----------------|
A|-------4--5--8-----------------------------------------------------8--5--4-------|
E|-6--8-----------------------------------------------------------------------8--6-|

Position 3 · C shape · frets 610

678910♭34♭55♭71♭34♭55♭7♭71♭34♭55

Ascending and descending tab

e|----------------------------------------6--8--9-10--9--8--6----------------------------------------|
B|----------------------------------6--8-----------------------8--6----------------------------------|
G|-------------------------6--7-10----------------------------------10--7--6-------------------------|
D|-------------------8-10----------------------------------------------------10--8-------------------|
A|-------------8-10----------------------------------------------------------------10--8-------------|
E|-6--8--9-10----------------------------------------------------------------------------10--9--8--6-|

Position 4 · A shape · frets 913

910111213♭55♭71♭34♭55♭71♭34♭55♭7

Ascending and descending tab

e|-------------------------------------9-10-13-10--9-------------------------------------|
B|------------------------------11-13----------------13-11-------------------------------|
G|------------------------10-12----------------------------12-10-------------------------|
D|---------------10-11-12----------------------------------------12-11-10----------------|
A|---------10-13----------------------------------------------------------13-10----------|
E|-9-10-13----------------------------------------------------------------------13-10--9-|

Position 5 · G shape · frets 1115

1112131415♭71♭34♭55♭71♭3♭34♭55♭71

Ascending and descending tab

e|---------------------------------------13-15-13----------------------------------------|
B|---------------------------11-13-14-15----------15-14-13-11----------------------------|
G|---------------------12-15----------------------------------15-12----------------------|
D|------------11-12-15----------------------------------------------15-12-11-------------|
A|------13-15----------------------------------------------------------------15-13-------|
E|13-15----------------------------------------------------------------------------15-13-|

Practice drill

In each position, play 4–♭5–5 on every available string pair and resolve in both directions. Then improvise a short phrase that crosses one position boundary through the blue note.

Use the guitar scale practice guide to turn the diagram into a recall, connection and phrasing routine.

If the interval formula or five-position layout is new, begin with the beginner guitar scale guide.

Open the scale randomiser