the Bill Evans school · ii–V–I in B♭ major
Rootless Voicings — B Form in B♭ Major
The audio adds each chord's root in the bass — that's the context these rootless shapes are designed to sit in. The MIDI file is exactly the notation.
The notes
| Chord | Notes (low → high) | Formula |
|---|---|---|
| Cm9 | B♭ – D – E♭ – G | ♭7 · 9 · ♭3 · 5 |
| F13 | A – D – E♭ – G | 3 · 13 · ♭7 · 9 |
| B♭maj9 | A – C – D – F | 7 · 9 · 3 · 5 |
Why it works
From Cm9 to F13, a single voice does all the work: B♭3 falls a half step to A3 while the other 3 notes hold. That stepwise pivot is the engine of the progression. Into B♭maj9, 3 voices settle by step (total motion of just 5 semitones). Smoothness here is measurable, not a metaphor.
In B♭ major, 3 of the 12 notes fall on black keys — a mixed terrain that is exactly why this progression must be practiced in every key, not just C. The lowest note is A3 in the octave below middle C; below roughly C3, close intervals start to blur, and this voicing stays clear of that line.
Practice tip: play the progression rubato first and listen for the held tones, then put the metronome on 2 and 4 at a slow tempo. When the grab is automatic, move around the circle of fourths — you are coming from F and headed to E♭. Say the chord symbols out loud as you play; naming and hearing are different skills, and you want both.
Where B♭ major lives in the repertoire
B♭ major is the horn key: rhythm changes ("I Got Rhythm" and its hundred contrafacts) live here, and so does a large share of the blues repertoire. A jobbing pianist probably plays more ii–V–Is in B♭ than in any key except E♭ — this page is core curriculum, not a variation.
About this voicing style
The same rootless grammar inverted: 7th on the bottom, for the keys where A form sits too low. Read the full story and get it in all 12 keys →
Listen: Bill Evans comping on "Autumn Leaves" (Portrait in Jazz); Kenny Barron's left hand on ballads.
Around the circle
Practice keys in the order bassists walk them — up a fourth: ← F · B♭ · E♭ →