Finger Positions

A#m/C diagram
Root Note A#
Name A# minor over C
Intervals 1P-3m-5P
Relative Minor C#
Notes C, A#, C#, F
Aliases A#m, A#min, A#-

How to play the A#m/C Chord

The A#m/C is a fundamental minor 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 A# minor over C is built using the 1P, 3m, 5P intervals. In the key of A# Major, this chord functions as the I chord.

Common Progressions

In music composition, the A#m/C chord is often used to create tension or resolution.

I-V-vi-IV

A#m → Fm → F# → D#m

vi-IV-I-V

F# → D#m → A#m → Fm

The Diatonic Family

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

Triads

A#m Cdim C# D#m Fm F# G#

7ths

A#m7 Cm7b5 C#maj7 D#m7 Fm7 F#maj7 G#7

Scale Compatibility

View All Scales
Minor Major Blues Minor Blues Melodic Minor Harmonic Minor Dorian Phrygian Vietnamese 1 Pelog Hirajoshi Minor Pentatonic Minor Six Pentatonic Flat Three Pentatonic Minor #7m Pentatonic Minor Hexatonic

* 15 scales found containing the notes C, A#, C#, F.

Acoustic & Digital Analysis

Digital footprint of the A#m/C chord for MIDI programming and synthesizer sound design.

MIDI Numbers 60, 70, 61, 65
Frequencies (Hz)

261.6255653005986, 466.1637615180899, 277.1826309768721, 349.2282314330039