Finger Positions

Root Note F#

Name F# over C

Intervals 1P-3m-6m-7m

Relative Minor D#m

Notes C, F#, A, D, E

Aliases F#m7#5

How to play the F#m7#5/C Chord

The F#m7#5/C is a fundamental dominant 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# over C is built using the 1P, 3m, 6m, 7m intervals. In the key of F# Major, this chord functions as the I chord.

Common Progressions

In music composition, the F#m7#5/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

Minor Phrygian Locrian Malkos Raga Altered Locrian #2 Spanish Heptatonic Bebop Locrian Minor Bebop Messiaen's Mode #3 Chromatic

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

Acoustic & Digital Analysis

Digital footprint of the F#m7#5/C chord for MIDI programming and synthesizer sound design.

MIDI Numbers 60, 66, 69, 62, 64

Frequencies (Hz)

261.6255653005986, 369.9944227116344, 440, 293.6647679174076, 329.6275569128699