A#/Bb7b9 guitar chord (A#/Bb Dominant 7th, Flat 9th)
Symbols: 7b9, 7-9
Steps: 1-3-5-b7-b9
Notes: A#-D-F-Ab-B
The A#/Bb 7b9 chord flattens the ninth, adding an intense and exotic flavor to the dominant seventh. Its notes A#, D, F, Ab and B are perfect for adding tension in a variety of musical genres, especially in blues and jazz. Below, you'll find five variations how to play the "A#/Bb 7b9" chord, each featuring finger placements and an audio sample.
Variation 1
- Stretch out your pinky to the 6th fret of the E (1st) string and press down
 - Position your index finger on the B (2nd) string at the 3rd fret and press down
 - Press down on the G (3rd) string at the 4th fret using your middle finger
 - Stretch out your ring finger to the 6th fret of the D (4th) string and press down
 - Now, strum all the strings starting from the 4th string
 
Variation 2
- With your ring finger, press down on the E (1st) string at the 7th fret
 - Apply a barre with your index finger across the 6th fret, covering the 2nd to the 6th strings
 - Press the G (3rd) string on the 7th fret with your middle finger
 - Position your pinky on the A (5th) string at the 8th fret and press down
 - Now, strum all the strings
 
Variation 3
- Barre the 7th fret with your index finger, extending over the 1st to the 3rd strings
 - Position your ring finger on the B (2nd) string at the 9th fret and press down
 - With your middle finger, press down on the D (4th) string at the 8th fret
 - Now, strum all the strings starting from the 4th string
 
Variation 4
- Place a barre using your index finger on the 7th fret
 - Use your pinky to press the B (2nd) string down on the 9th fret
 - Press down on the D (4th) string at the 8th fret using your ring finger
 - Position your middle finger on the A (5th) string at the 8th fret and press down
 - Now, strum all the strings
 
Variation 5
- With your pinky, press down on the E (1st) string at the 13th fret
 - Place a barre using your index finger on the 12th fret from the 2nd to the 4th strings
 - Press the G (3rd) string on the 13th fret with your ring finger
 - Place your middle finger on the A (5th) string at the 13th fret and press down
 - Now, strum all the strings starting from the 5th string
 
- A#/Bb Major
 - A#/Bb Minor
 - A#/Bb 7
 - A#/Bb 5
 - A#/Bb dim
 - A#/Bb dim7
 - A#/Bb aug
 - A#/Bb sus2
 - A#/Bb sus4
 - A#/Bb maj7
 - A#/Bb m7
 - A#/Bb 7sus4
 - A#/Bb maj9
 - A#/Bb maj11
 - A#/Bb maj13
 - A#/Bb maj9#11
 - A#/Bb maj13#11
 - A#/Bb add9
 - A#/Bb 6add9
 - A#/Bb maj7b5
 - A#/Bb maj7#5
 - A#/Bb m6
 - A#/Bb m9
 - A#/Bb m11
 - A#/Bb m13
 - A#/Bb madd9
 - A#/Bb m6add9
 - A#/Bb mmaj7
 - A#/Bb mmaj9
 - A#/Bb m7b5
 - A#/Bb m7#5
 - A#/Bb 6
 - A#/Bb 9
 - A#/Bb 11
 - A#/Bb 13
 - A#/Bb 7b5
 - A#/Bb 7#5
 - A#/Bb 7b9
 - A#/Bb 7#9
 - A#/Bb 7(b5,b9)
 - A#/Bb 7(b5,#9)
 - A#/Bb 7(#5,b9)
 - A#/Bb 7(#5,#9)
 - A#/Bb 9b5
 - A#/Bb 9#5
 - A#/Bb 13#11
 - A#/Bb 13b9
 - A#/Bb 11b9
 - A#/Bb sus2sus4
 - A#/Bb -5