C#sus4 Guitar Chord
C#sus4 is a suspended chord built from C#, F#, G#. Replacing the third with a perfect fourth creates tension that typically resolves to C# major — a motion widely used in rock, pop, and folk for dramatic chord changes.
4 ways to play C#sus4
Notes
Intervals
C# (Root), F# (Perfect 4th), G# (Perfect 5th)
Notes in the C# Suspended 4th Chord
The C# Suspended 4th chord is built from 3 notes: C#, F#, G#. It is a suspended 4th chord — built from a root, perfect fourth (5 semitones above the root), and perfect fifth — no third is present. On guitar, these notes are voiced across multiple strings simultaneously to create the full chord sound. Depending on the voicing, some notes may be doubled in different octaves to fill out the sound.
Common Chord Progressions with C#sus4
C# Suspended 4th appears in many common progressions. Here are the most-used patterns when C#sus4 is the tonic chord:
Use our chords in a key tool to find all the chords that naturally pair with C#sus4 in any key.
Frequently Asked Questions
What notes are in the C# Suspended 4th chord?
The C# Suspended 4th chord is made up of C#, F#, G#. These 3 notes form a triad (three-note chord structure).
What key is the C# Suspended 4th chord in?
C# Suspended 4th is a less common chord that doesn't appear as a diatonic chord in the standard 12 major keys, but is used as a borrowed or chromatic chord in many styles.
How do I play the C#sus4 chord on guitar?
Place your fingers on the guitar fretboard according to the diagram above. The numbered dots show finger placement (1 = index, 2 = middle, 3 = ring, 4 = pinky), "O" means play the string open, and "X" means mute that string.
Other C# Chords
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