CadenzaB♭ minor six-nine
B♭m6/9
Also written A♯m6/9 · B♭m69 · B♭−6/9
Minor 6/9 — the tonic of dorian and melodic minor. Minor 3rd, major 6th and 9th: dark and bright in one chord. Without the 6th it is B♭m(add9).
How pianists voice B♭m6/9
Nobody plays a jazz chord in root position. These are the shapes that actually get played — the same ones Cadenza shows when you play the chord.
Shell Left hand
1 · ♭3 · 6 — root, 3rd and 6th: the three notes that say what the chord is. Left hand, low; everything else is colour.
Rootless A From the 3rd
♭3 · 5 · 6 · 9 — no root: the bass player has it. The left-hand voicing of modern jazz piano. Without B♭ underneath, the same keys read as D♭maj7(♯11) — the bass turns them into B♭m6/9.
Rootless B From the 6th
6 · 9 · ♭3 · 5 — the other half of the pair. A and B alternate through a ii–V–I so the hand barely moves.
Drop 2 Two hands
5 · 1 · ♭3 · 6 — close position with the second voice from the top dropped an octave: wider, warmer, the standard for chord melody.
Minor six-nine chords in every key
Every B♭ chord
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