Chord · 9ths

B♭m9♭5 — B♭ Minor 9th ♭5

B♭m9♭5 is the B♭ minor 9th ♭5 chord. It is built on the root B♭ with minor 3rd (D♭), diminished 5th (F♭), minor 7th (A♭) and major 9th (C) above it — the formula 1 ♭3 ♭5 ♭7 9, sounding the notes B♭ D♭ F♭ A♭ C. On the piano it sits at Bb (octave 3) and above in the library's voicing; the same 5 notes in any octave are still B♭m9♭5.

Root
B♭
Quality
Minor 9th ♭5
Formula
1 ♭3 ♭5 ♭7 9
Notes
B♭ D♭ F♭ A♭ C

On the keyboard

B♭m9♭5 on the piano keyboard: B♭ D♭ F♭ A♭ CB♭D♭F♭A♭C

The notes of B♭m9♭5

DegreeNoteInterval from the rootPitch
1B♭rootB♭3
♭3D♭minor 3rdD♭4
♭5F♭diminished 5thF♭4
♭7A♭minor 7thA♭4
9Cmajor 9thC5

Other 9ths on B♭

B♭9B♭maj9B♭m9B♭mMaj9B♭9sus4B♭9♭5B♭9♯5

Minor 9th ♭5 chords on every root

Cm9♭5C♯m9♭5Dm9♭5E♭m9♭5Em9♭5Fm9♭5F♯m9♭5Gm9♭5G♯m9♭5Am9♭5Bm9♭5

Part of the chord reference. See also the scales and the keys.