Dominant blues
What players really run over a dominant seventh: the major scale with a flat seven and the blue third.
C, crotchet; D, crotchet; E flat, crotchet; E, crotchet; F, crotchet; G, crotchet; A, crotchet; B flat, crotchet; C, crotchet
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C D E♭ E F G A B♭