Chord · 13ths

B♭m13 — B♭ Minor 13th

B♭m13 is the B♭ minor 13th chord. It is built on the root B♭ with minor 3rd (D♭), perfect 5th (F), minor 7th (A♭), major 9th (C) and major 13th (G) above it — the formula 1 ♭3 5 ♭7 9 13, sounding the notes B♭ D♭ F A♭ C G. On the piano it sits at Bb (octave 3) and above in the library's voicing; the same 6 notes in any octave are still B♭m13.

Root
B♭
Quality
Minor 13th
Formula
1 ♭3 5 ♭7 9 13
Notes
B♭ D♭ F A♭ C G

On the keyboard

B♭m13 on the piano keyboard: B♭ D♭ F A♭ C GB♭D♭FA♭CG

The notes of B♭m13

DegreeNoteInterval from the rootPitch
1B♭rootB♭3
♭3D♭minor 3rdD♭4
5Fperfect 5thF4
♭7A♭minor 7thA♭4
9Cmajor 9thC5
13Gmajor 13thG5

Other 13ths on B♭

B♭13B♭maj13B♭13sus4B♭13♭5

Minor 13th chords on every root

Cm13C♯m13Dm13E♭m13Em13Fm13F♯m13Gm13G♯m13Am13Bm13

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