Quick Answer & Harmonic Definition

To play the A# Minor 9th chord on guitar, find the notes A#, C#, F, G#, C across the fretboard. The root A# typically goes on the 6th or 5th string. Use the interactive fretboard above to see exact finger placement for this extended chord shape.

Guitar Chord

A#m9 Guitar Chord

Minor 7th chord with an added 9th. Rich texture used in neo-soul and R&B. Learn the A# Minor 9th chord on guitar with interactive fretboard, audio playback, and multiple voicings.

Notes
A# – C# – F – G# – C
Intervals
0 – 3 – 7 – 10 – 14
Type
extended chord
A# C# F G# C
E
A
D
G
B
e
3
5
7
9
12
5 notes · Standard (E A D G B E)

Playing the A#m9 Guitar Chord

The A#m9 chord is a minor 9th chord built on the root A#. It contains 5 notes: A#, C#, F, G#, C. On guitar, this chord can be played in multiple positions across the fretboard, from open shapes to barre chord voicings.

Minor 7th chord with an added 9th. Rich texture used in neo-soul and R&B. For guitarists, mastering the A#m9 chord unlocks many songs in the key of A#.

Recommended A#m9 Guitar Voicing

The interactive fretboard above shows a practical A#m9 voicing. The chord notes (A#, C#, F, G#, C) appear as highlighted positions. Tap any highlighted fret to hear that note, or click "Play A#m9" to hear the full chord.

Interval Structure of A#m9

Degree Interval Semitones Note in A#
Root Root (R) 0 A#
3rd Minor 3rd 3 C#
5th Perfect 5th 7 F
7th Minor 7th 10 G#
9th Major 9th 14 C

Common Progressions with A#m9 on Guitar

  • I–IV–V: A#m9 – D#m9 – Fm9 (foundation of blues and rock)
  • I–V–vi–IV: A#m9 – F – Gm – D# (modern pop staple)
  • I–vi–IV–V: A#m9 – Gm – D# – F (50s doo-wop)

Tips for Practicing A#m9 on Guitar

Start by finding the root note A# on the 6th and 5th strings. Build the chord shape from there. Practice transitioning between A#m9 and nearby chords like D# and F. Use slow, deliberate strums and check each string rings clearly.

Other A# Guitar Chords

A#
Major
A#m
Minor
A#7
Dominant 7th
A#maj7
Major 7th
A#m7
Minor 7th
A#dim
Diminished

Minor 9th Chord in All 12 Keys

Cm9 C#m9 Dm9 D#m9 Em9 Fm9 F#m9 Gm9 G#m9 Am9 A#m9 Bm9
Virtual Guitar
Interactive fretboard
A#m9 Piano
Piano chord diagram
A# Scale
Notes that fit this chord
Songs
Find songs using A#m9

Knowledge Base & FAQs

A#m9 Guitar Chord — FAQ

Everything you need to know about our browser-based Web Audio engine, instruments, and music theory workspace.

How do I play the A#m9 chord on guitar?

To play the A# Minor 9th chord on guitar, find the notes A#, C#, F, G#, C across the fretboard.

The root A# typically goes on the 6th or 5th string. Use the interactive fretboard above to see exact finger placement for this extended chord shape.

What notes make up the A#m9 guitar chord?

The A# Minor 9th guitar chord contains 5 notes: A#, C#, F, G#, C.

These are derived from the minor 9th interval formula applied to the root A#.

What is the best guitar voicing for A#m9?

The most common guitar voicing for A#m9 uses a root position with A# on the 6th or 5th string.

The exact frets depend on your preferred voicing — the interactive fretboard above shows a recommended open or barre position shape.

Is A#m9 a beginner-friendly guitar chord?

A#m9 has 5 notes, which may require more advanced finger stretching.

Start with the basic extended shape and practice clean transitions.

What is a barre chord version of A#m9?

A barre chord version of A#m9 uses your index finger pressed across all strings at a specific fret, with the remaining fingers forming the chord shape.

The root A# determines the barre position on the 6th or 5th string.

What are common chord progressions with A#m9 on guitar?

A#m9 is widely used in jazz ii–V–I turnarounds, blues progressions, and modal funk vamps.

How does A#m9 sound different on guitar vs piano?

The A#m9 chord contains the same notes (A#, C#, F, G#, C) on both instruments.

On guitar, the voicing depends on string selection and fret position, creating a different timbre. Guitar chords often include string-specific articulations like hammer-ons and pull-offs.

Can I play A#m9 as an open chord on guitar?

Open voicings of A#m9 require A# to be playable within the first 3 frets.

If open shapes aren't available, use a barre chord voicing instead.

What is the difference between the A#m9 chord on guitar and ukulele?

The A#m9 chord contains the same notes (A#, C#, F, G#, C) on both instruments.

However, the guitar has 6 strings in EADGBE tuning while the ukulele has 4 strings in GCEA tuning, so the finger shapes are completely different.

How do I practice transitioning to and from A#m9 on guitar?

Practice moving between A#m9 and its neighboring chords in the key of A# major: D# and F.

Use a metronome at a slow tempo (60 BPM) and focus on clean, simultaneous finger placement.