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Pentatonic

Blues Scale

The minor pentatonic with an added flat 5th (the 'blue note'). The defining scale of blues and rock — raw, expressive, and instantly recognisable.

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Hear the Blues Scale

How to Identify It

Like the minor pentatonic but with an extra note that adds tension — the blue note. It creates a slight dissonance that gives blues its characteristic expression and feeling.

Famous Examples

  • The blues scale defines virtually all blues music
  • Crossroads — Cream/Johnson
  • Stormy Monday — T-Bone Walker
  • Pride and Joy — SRV
Test your earThe recognition trainer plays random scales — identify them with instant feedback.
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Blues in All 12 Keys

Often Confused With

About the Blues Scale

The blues scale is a pentatonic scale built from the interval pattern 3, 2, 1, 1, 3, 2 (in whole and half steps). The minor pentatonic with an added flat 5th (the 'blue note'). The defining scale of blues and rock — raw, expressive, and instantly recognisable.

To recognise the blues scale reliably by ear, focus on its characteristic mood — raw, expressive, soulful, tense. Use the player above to hear it in all 12 keys, and the recognition trainer to test yourself against a mixed set of scales.