Chord · 6ths & Adds

B♭6/9 — B♭ Six-Nine

B♭6/9 is the B♭ six-nine chord. It is built on the root B♭ with major 3rd (D), perfect 5th (F), major 6th (G) and major 9th (C) above it — the formula 1 3 5 6 9, sounding the notes B♭ D F G C. On the piano it sits at Bb (octave 3) and above in the library's voicing; the same 5 notes in any octave are still B♭6/9.

Root
B♭
Quality
Six-Nine
Formula
1 3 5 6 9
Notes
B♭ D F G C

On the keyboard

B♭6/9 on the piano keyboard: B♭ D F G CB♭DFGC

The notes of B♭6/9

DegreeNoteInterval from the rootPitch
1B♭rootB♭3
3Dmajor 3rdD4
5Fperfect 5thF4
6Gmajor 6thG4
9Cmajor 9thC5

Other 6ths & adds on B♭

Six-Nine chords on every root

Part of the chord reference. See also the scales and the keys.