Finger Positions

Root Note F#

Name F# augmented over C

Intervals 1P-3M-5A

Relative Minor D#m

Notes C, F#, A#, D

Aliases F#aug, F#+, F#+5, F#^#5

How to play the F#aug/C Chord

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

Common Progressions

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

I-V-vi-IV

F# → C# → D#m → B

vi-IV-I-V

D#m → B → F# → C#

The Diatonic Family

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

Triads

F# G#m A#m B C# D#m Fdim

7ths

F#maj7 G#m7 A#m7 Bmaj7 C#7 D#m7 Fm7b5

Scale Compatibility

View All Scales

Flat Six Pentatonic Whole Tone Pentatonic Lydian #5p Pentatonic Augmented Mystery #1 Six Tone Symmetric Whole Tone Locrian Major Double Harmonic Lydian Altered Mixolydian B6 Lydian Augmented Ultralocrian Augmented Heptatonic Leading Whole Tone

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

Acoustic & Digital Analysis

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

MIDI Numbers 60, 66, 70, 62

Frequencies (Hz)

261.6255653005986, 369.9944227116344, 466.1637615180899, 293.6647679174076