B Minor major ninth flat sixth

The minor-major ninth flat sixth chord extends the mM7♭6 / mM7(♭13) idea by adding a major ninth (1-♭3-5-7-9-♭13). You keep the bittersweet frame of a minor third with a major seventh, then widen the stack with a singing ninth while the lowered sixth/♭13 adds shadow. It is a specialist color: dramatic, cinematic, and common in modern jazz and contemporary scoring when a tonic minor needs maximum harmonic information without resolving.

Construction

Think mM9 plus ♭13 (same pitch class as ♭6). Choose spellings for readability and register separation.

Usage

Brief spotlight sonorities, film scoring, and jazz reharmonizations on static minor centers.

Examples

• Modern jazz tonic colors on melodic minor tunes
• Film cues for bittersweet tension
• Neo-soul pads that avoid plain m9 or mM7

Play

Thin the voicing; separate ♭13 from the major seventh and ninth across registers.

Ear-training cues

mM7 plus 9 with a ♭13 shadow in the stack.