Bbadd9 Chord on Guitar: How To Play the Bb Major Ninth Added chord
Searching for plain Badd9, without the flat? It has its own page: Badd9.
To build Bbadd9, the Bb add nine chord, take root Bb, major third D, fifth F and ninth C. Folded back into one octave, the ninth sits a whole step above the root.
The Bb major scale covers all four chord tones and adds the passing notes between them. It differs from a sus2 by one note: sus2 replaces the third with the second, while add9 keeps both. Changing the bass note is called an inversion, and chord inversions explains how it works.
Bbadd9 is a major triad with the ninth added and no seventh.
Bb added 9th guitar chord is also written as Bbadd9, Bb(add9), Bbadd2 or Bbmaj(add9).
Bbadd9 Chord Notes and Formula
Notes that compose the Bb add9 chord:
Tones of the Major Ninth Added chord:
Formula: 1 3 5 9
Same chord, different name: Bbadd9 is also written as A#add9 (A# add nine).
Bbadd9 Chord Interactive Fretboard
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Chords That Go With Bbadd9
One key where Bbadd9 fits is Bb major, where it works as the I chord. These are the main chords of that key, the ones you will often hear around it:
See every key in the guitar keys chart, or build a progression with these chords in the chord progression generator.
More Bb Chords
Want to know how this chord is built? Read ninth and add9 chords explained, or browse all Bb guitar chords.
Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
Which notes does Bb add nine contain?
Bb add nine contains Bb, D, F and C. They are the root, major third, perfect fifth and ninth, with C an octave and a whole step up from Bb.
Is Bbadd9 the same chord as A#add9?
They sound the same. Bbadd9 is spelled Bb, D, F, C, and A#add9 is spelled A#, C##, E#, B#. The flat spelling is easier to read.
How does Bb add nine differ from Bb suspended second?
The suspended second replaces the third with the second, C, giving Bb, C, F. Bb add nine keeps the third, D, and includes C as the ninth.
Which scale matches Bbadd9?
The Bb major scale: Bb, C, D, Eb, F, G, A. It holds all four notes of the chord.
