Bb7#9 Guitar Chord | Play, Hear and Practice Interactively
Want a structured chord roadmap instead of jumping between pages?
Go to the full guitar chords tutorial.
Spell Bb7#9, or Bb seventh sharp nine, from Bb and you get Bb, D, F, Ab and C#: a root, a major third, a perfect fifth, a minor seventh and a sharp ninth. It is a dominant seventh with one altered tone, the raised ninth C#, and it is often called the Hendrix chord.
The three voicings here run from fret 1 to fret 9, and two of them are barre shapes. When you improvise over this chord, try the Bb Half-Whole scale, the eight-note scale built from alternating half steps and whole steps, which covers all five chord tones. Extended chords like this build on the ideas in ninth chords.
Press play in the player at the top of the page to hear Bb7#9 strummed, then picked as an arpeggio.
Bb 7th with sharp 9th guitar chord is also written as Bb7(#9), Bb7#9 or Bb7+9. It is also known as the Hendrix chord.
Bb 7(#9) chord Notes:
Chord formula for the Dominant Seventh Sharp Ninth Added chord:
Formula: 1 3 5 b7 #9
Bb 7(#9) Guitar Chord Diagrams
Position 1 Open
Finger Positions
- Mute the low E string
- Let the D string play without pressing any fret
- Place your index finger (1) on the fret 1 of the A string
- Place your middle finger (2) on the fret 1 of the G string
- Place your ring finger (3) on the fret 1 of the high E string
- Place your pinky finger (4) on the fret 2 of the B string
Position 2 Barre Movable
Finger Positions
- Mute the high E string
- Place your index finger (1) on the fret 5 of the A string
- Place your middle finger (2) on the fret 6 of the low E string
- Place your ring finger (3) on the fret 6 of the D, G and B strings at the same time
Position 3 Barre Movable
Finger Positions
- Place your index finger (1) on the fret 6 of the low E, D and B strings at the same time
- Place your middle finger (2) on the fret 7 of the G string
- Place your ring finger (3) on the fret 8 of the A string
- Place your pinky finger (4) on the fret 9 of the high E string
Find more shapes in our all guitar chords online library. If you
prefer a printable pdf, download
the Free Guitar Chords Chart Pdf
Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
Which five notes make up Bb7#9?
Bb, D, F, Ab and C#. The first four form a Bb seventh chord, and C# is the sharp ninth.
Why does Bb7#9 contain both D and C#?
D is the major third. C# is the sharp ninth and sounds like Db, a minor third from Bb. So the chord holds a major third and a minor-sounding third at once.
Is A#7#9 the same as Bb7#9?
They sound the same. A#7#9 is spelled A#, C##, E#, G# and B##, which needs several double sharps, so Bb7#9 is the simpler spelling.
What scale can I play over Bb7#9?
The Bb Half-Whole scale: Bb, Cb, C#, D, E, F, G and Ab. It has eight notes built from alternating half and whole steps and includes all five chord tones.
How many voicings are listed for the Bb seventh sharp nine chord?
Three voicings are listed, from the first fret to the ninth fret. One of them uses open strings and two are barre voicings.
