Bb m(maj7)(b5)
The Bb m(maj7)(b5) chord consists of the Bb (Perfect unison), Db (Minor third), Fb (Diminished fifth) and A (Major seventh) notes.
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How to play the Bb m(maj7)(b5) chord
- Find Bb (Root) on the piano keyboard
- Add Db (Minor third) — 3 semitones above Bb
- Add Fb (Diminished fifth) — 6 semitones above Bb
- Add A (Major seventh) — 11 semitones above Bb
- Press all 4 notes simultaneously to sound the Bb m(maj7)(b5) chord