Finger Positions

Root Note C

Name C suspended second over F#

Intervals 1P-2M-5P

Relative Minor Am

Notes F#, C, D, G

Aliases Csus2

How to play the Csus2/F# Chord

The Csus2/F# is a fundamental suspended 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 C suspended second over F# is built using the 1P, 2M, 5P intervals. In the key of C Major, this chord functions as the I chord.

Common Progressions

In music composition, the Csus2/F# chord is often used to create tension or resolution.

I-V-vi-IV

C → G → Am → F

vi-IV-I-V

Am → F → C → G

The Diatonic Family

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

Triads

C Dm Em F G Am Bdim

7ths

Cmaj7 Dm7 Em7 Fmaj7 G7 Am7 Bm7b5

Scale Compatibility

View All Scales

Major Pentatonic Major Minor Major Blues Melodic Minor Harmonic Minor Bebop Dorian Lydian Mixolydian Ritusen Egyptian Hirajoshi Flat Three Pentatonic Flat Six Pentatonic

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

Acoustic & Digital Analysis

Digital footprint of the Csus2/F# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 66, 60, 62, 67

Frequencies (Hz)

369.9944227116344, 261.6255653005986, 293.6647679174076, 391.99543598174927