Bbm7b5 chord
B-flat half-diminished, also written A#m7b5. 2 shapes on the neck below, with the notes it's built from and the keys it belongs to.
Notes
- Bb
- 1
- Db
- b3
- Fb
- b5
- Ab
- b7
The minor third is what makes it sound sad or dark.
The diminished fifth adds tension that wants to move somewhere.
The minor seventh adds a bluesy edge and leaves the chord sounding unfinished.
How to play Bbm7b5
- Root on A
- x1212x
- Drop 2
- xx8999
Want to know why this chord works where it does? The Intermediate lessons cover it, and founding players get them first.
Keys with Bbm7b5
Bbm7b5 uses only notes from G# minor and B major. It sounds most at home in G# minor.