Finger Positions

Root Note Bb

Name Bb minor ninth

Intervals 1P-3m-5P-7m-9M

Relative Minor Gm

Notes Bb, Db, F, Ab, C

Aliases Bbm9, Bb-9

How to play the Bbm9 Chord

The Bbm9 is a fundamental dominant chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the Bb minor ninth is built using the 1P, 3m, 5P, 7m, 9M intervals. In the key of Bb Major, this chord functions as the I chord.

Common Progressions

In music composition, the Bbm9 chord is often used to create tension or resolution.

I-V-vi-IV

Bb → F → Gm → Eb

vi-IV-I-V

Gm → Eb → Bb → F

The Diatonic Family

Understanding the "family" of chords that belong to Bb helps with transposition and ear training.

Triads

Bb Cm Dm Eb F Gm Adim

7ths

Bbmaj7 Cm7 Dm7 Ebmaj7 F7 Gm7 Am7b5

Scale Compatibility

View All Scales

Minor Dorian Dorian #4 Bebop Minor Minor Bebop Composite Blues Messiaen's Mode #3 Chromatic

* 8 scales found containing the notes Bb, Db, F, Ab, C.

Acoustic & Digital Analysis

Digital footprint of the Bbm9 chord for MIDI programming and synthesizer sound design.

MIDI Numbers 70, 61, 65, 68, 60

Frequencies (Hz)

466.1637615180899, 277.1826309768721, 349.2282314330039, 415.3046975799451, 261.6255653005986