CadenzaG six-nine
G6/9
Also written G69 · G6add9
The major 6 with the 9th added. There is no 7th to pull anywhere, so it is the jazz tonic when Gmaj7 sounds too sweet — and every note belongs to the G major pentatonic scale.
How pianists voice G6/9
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 G underneath, the same keys read as Bm11 — the bass turns them into G6/9.
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. Without G underneath, the same keys read as E7sus4 — the bass turns them into G6/9.
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.
In fourths Quartal
1 · 3 · 6 · 9 · 5 — 3, 6, 9 and 5 stacked a perfect 4th apart over the root. Open, modern, and not one note that could clash.
Six-nine chords in every key
Every G chord
Play a chord. See its name.
The free chord finder names whatever you play — on a MIDI keyboard, with your mouse or on your computer keys — with the same engine as Cadenza.
Or let the app follow you.
Cadenza names every chord you play, live, writes what you played as sheet music, and puts the keyboard straight into OBS. The core is free forever.