Bb Minor 9th

Bbm9

Notes

Bb · Db · F · Ab · C

Intervals

  • RootBb (1P)
  • Minor 3rdDb (3m)
  • Perfect 5thF (5P)
  • Minor 7thAb (7m)
  • Major 9thC (9M)

Fretboard

EBGDAE357912FAbBbCDbCDbFAbBbAbBbCDbFFAbBbCDbBbCDbFAbFAbBbCDb

About

The B♭m9 minor ninth (B♭–D♭–F–A♭–C) extends a minor 7 with a ninth. The C sits above the A♭ and adds an expressive, singing quality. The essential tones are the D♭ (minor identity), A♭ (seventh extension), and C (defining color); the 5th can be dropped to keep voicings clear. m9 chords appear frequently in jazz, neo-soul, and ambient styles as tonic or pre-dominant harmony — for example as ii in a major ii–V–I (B♭m9 → E♭9 → A♭Maj9). Compared to B♭m7, the added 9th gives more emotional dimension without increasing tension.

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