Abm9 Guitar Chord | Play, Hear and Master it Interactively
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The Abm9 chord, Ab minor ninth, is spelled Ab, Cb, Eb, Gb and Bb. The Cb is the same pitch as B, so the chord also appears as G#m9 in sharp keys.
Three voicings are listed, one of them a barre shape, and the lowest begins at the 4th fret. The top four notes, Cb, Eb, Gb and Bb, outline a Cbmaj7 chord. The Ab Dorian scale contains every chord tone.
The fretboard at the top plays Abm9 strummed, then as an arpeggio, one note after another. Compare the two to hear how the notes of the chord combine.
Ab minor 9th guitar chord is also written as Abm9, Abmin9 or Ab-9.
Notes in the Ab m9 chord:
Tones in the Minor Ninth chord:
Formula: 1 b3 5 b7 9
Ab M9 Guitar Chord Diagrams
Position 1 Barre Movable
Finger Positions
- Place your index finger (1) on the fret 4 of the low E, D, G and B strings at the same time
- Place your ring finger (3) on the fret 6 of the A string
- Place your pinky finger (4) on the fret 6 of the high E string
Position 2 Movable
Finger Positions
- Mute the low E string
- Mute the A string
- Place your index finger (1) on the fret 4 of the G string
- Place your middle finger (2) on the fret 6 of the D string
- Place your ring finger (3) on the fret 6 of the high E string
- Place your pinky finger (4) on the fret 7 of the B string
Position 3 Movable
Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 9 of the D string
- Place your middle finger (2) on the fret 11 of the A string
- Place your ring finger (3) on the fret 11 of the G string
- Place your pinky finger (4) on the fret 11 of the B string
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Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
Which notes does Abm9 contain?
Abm9 is spelled Ab, Cb, Eb, Gb and Bb. The Bb is the ninth, two semitones up from Ab one octave higher.
Why is Abm9 written with Cb?
The third of an A chord needs the letter C. A minor third up from Ab is Cb, which sounds the same as B. The spelling follows the letters A, C, E, G, B.
What is the difference between Abm9 and G#m9?
Nothing in sound: Ab and G# are the same pitch, so the chords are enharmonic twins. The G#m9 spelling uses G#, B, D#, F# and A#.
How does Abm9 fit with Ab Dorian?
Ab Dorian is Ab, Bb, Cb, Db, Eb, F and Gb. All five notes of Abm9 are in it, so the scale can be played over the chord.
How many voicings of Abm9 are there?
The fingering data lists 3 voicings from the 4th to the 11th fret. One is a barre voicing and none uses an open string.
