Finger Positions

Root Note A

Name A minor over C#

Intervals 1P-3m-5P

Relative Minor C

Notes C#, A, C, E

Aliases Am, Amin, A-

How to play the Am/C# Chord

The Am/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 Am/C# chord is often used to create tension or resolution.

I-V-vi-IV

Am → Em → F → Dm

vi-IV-I-V

F → Dm → Am → Em

The Diatonic Family

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

Triads

Am Bdim C Dm Em F G

7ths

Am7 Bm7b5 Cmaj7 Dm7 Em7 Fmaj7 G7

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, E.

Acoustic & Digital Analysis

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

MIDI Numbers 61, 69, 60, 64

Frequencies (Hz)

277.1826309768721, 440, 261.6255653005986, 329.6275569128699