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7b9 Chords

Dominant seventh flat ninth chords (7b9) consist of a Root, a major 3rd, a perfect 5th, a minor 7th, and a flat 9th of the major scale built on the root.

Standard bass system allows you to play 7b9 chords on the accordion combining the root bass with the diminished chord of its minor 7th degree.

7b9 chords on Accordion in all keys: