Guitar Theory Studio
Scale

C Blues Scale

The C blues scale — C Eb F Gb G Bb — with its intervals, the chords it makes and every position on the guitar neck.

C Blues Scale on the guitar fretboard13578910121415eBGDAEFGbGBbCEbFGbGCEbFGbGBbCGBbCEbFGbGBbEbFGbGBbCEbFBbCEbFGbGBbCFGbGBbCEbFGbG

Tap any note on the neck.

Swipe the neck sideways to see the higher frets.

Notes
C   Eb   F   Gb   G   Bb
Intervals
1   b3   4   b5   5   b7
Step pattern
W+H – W – H – H – W+H – W
Open this in the fretboard tool →

C blues is C minor pentatonic with the b5 added — Gb.

C blues scale notes and intervals

C blues has 6 notes. Each is named by its distance from the root, which is the same in every key — learn the numbers once and every blues scale reads the same.

C
1
root
Eb
b3
minor 3rd
F
4
perfect 4th
Gb
b5
diminished 5th
G
5
perfect 5th
Bb
b7
minor 7th

Step pattern from the root: W+H – W – H – H – W+H – W (W is a whole step, two frets; H is a half step, one fret; W+H is three frets).

Scales it shares notes with:

C blues scale positions on guitar — all 5

C blues is played in five box shapes that tile the neck between frets 0 and 14. Each box shares frets with the next, so you change shape without stopping. Position 3 sits lowest.

Position 1 — frets 8–11

C blues scale, position 1, frets 8–11789101112CEbFGbGBbCEbFGbGBbCEb

Position 2 — frets 10–14

C blues scale, position 2, frets 10–149101112131415EbFGbGBbCEbFGbGBbCEbF

Position 3 — frets 0–4

C blues scale, position 3, frets 0–4012345FGbGBbCEbFGbGBbCEbFGbG

Position 4 — frets 3–7

C blues scale, position 4, frets 3–72345678GBbCEbFGbGBbCEbFGbGBb

Position 5 — frets 5–9

C blues scale, position 5, frets 5–945678910BbCEbFGbGBbCEbFGbGBbC

Each box on its own page, with how it joins its neighbours →

Chords to play C blues over

C blues is the minor scale with the 2 and the b6 left out and a b5 added — the notes most likely to clash — so it works across the chords of C minor and over the dominant seventh chords of a blues in C. It is not an equally good fit on every one of them: over each chord, aim for that chord’s own notes and let the rest pass.

Cm
Cm chord shape5frCEbGCGC
i
Ddim
Ddim chord shape9frDAbDFAbD
ii°
Eb
Eb chord shape8frEbGBbEbGEb
III
Fm
Fm chord shapeFCFAbCF
iv
Gm
Gm chord shapeDGGBbDG
v
Ab
Ab chord shape1frAbCEbAbCAb
VI
Bb
Bb chord shape3frBbDFBbDBb
VII

All the chords in C minor, with shapes and numerals →

How to practice the C blues scale

  1. Start with position 3 at frets 0–4, slowly, until every note lands on the click. The loop keeps the shape and the tempo for you.
  2. Add five beats a minute each time it feels easy. When straight runs get dull, play the same position in thirds — the pattern that turns a scale into lines.
  3. See every C blues note across the whole neck on the Fretboard, and find each box again an octave up.

Put this fretboard on your own page

Teachers and bloggers: paste this and your readers get the diagram above, playable, on your page. Free to use, and the credit line links back here.