Minor blues
Minor blues
The scale sits naturally over minor-blues harmony.
Guitar Scales · ChordRevelation
Blues Scale on Guitar — Formula, Blue Note & Chord Use
The blues scale adds the ♭5 to Minor Pentatonic. That extra chromatic tone is usually expressive motion rather than a note that must be held equally against every chord.
Interval formula / structure1–♭3–4–♭5–5–♭7
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Harmony first
Where this scale fits.
ChordRevelation treats scale choice as a relationship between chord formula, function and target — not as a root-name lookup.
Dominant blues
Dominant blues
Same-root blues vocabulary creates deliberate friction against dominant 3rds.
Passing tension
Passing tension
The ♭5 often works best as a passing or bending destination between 4 and 5.
Fretboard practice
Turn the formula into usable guitar vocabulary.
Keep chord tones visible, compare overlays and practice toward the next chord instead of running patterns without a harmonic destination.
Practice
Do not stop on every scale tone
Treat the ♭5 as expressive tension and hear where it wants to move.
Practice
Track I7, IV7 and V7
Keep one blues vocabulary but change target chord tones as the progression moves.
Practice
Compare Minor Pentatonic
Toggle the extra ♭5 on and off to hear exactly what the blues scale adds.
FAQ
Quick answers.
The interval formula is the starting point; Play Over provides the real harmonic context.
What is the formula for blues scale?
1–♭3–4–♭5–5–♭7
How should I practice blues scale on guitar?
Connect the interval formula to chord tones and real harmonic context, then compare positions on the fretboard instead of memorizing a single box.
Can I use blues scale over every chord with the same root?
No. Scale choice depends on chord quality, harmonic function, key context and the next target chord, not only the root name.
ChordRevelation Play Over
See the scale inside the actual chord.
Open the approach on the fretboard, compare chord tones with tensions, keep multiple overlays visible and use the next chord as the resolution target.