The 7♭6 sonority introduces a lowered sixth against a dominant frame, creating a color close to 7♭13 but often voiced with more modal flexibility. It feels earthy, blues-inflected, and slightly darker than plain mixolydian dominant.
Construction
A practical spelling is 1-3-5-♭6-♭7. In C: C-E-G-A♭-B♭. 3 and ♭7 maintain dominant identity while ♭6 reshapes the upper mood.
Usage
Useful in blues-jazz mixtures, modal dominant vamps, and roots-inspired harmonic settings where altered tension should remain grounded.
Play
Keep guide tones stable and feature ♭6 in melody or top voice. Let ♭6 move stepwise to 5 or 6 depending on target color.
