C♯sus4
C♯ Suspended 4th
1 4 5
Notes in C♯sus4
C♯R
F♯4
A♭5
The C♯sus4 chord contains 3 notes: C♯, F♯, A♭
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | C♯ | Root |
| 4 | 5 | F♯ | Perfect 4th |
| 5 | 7 | A♭ | Perfect 5th |
About C♯ Suspended 4th Chords
Suspended 4th chords replace the 3rd with the 4th. The 4th creates gentle tension that traditionally resolves down to the 3rd (making the chord major). Pete Townshend of The Who made sus4 chords iconic in rock.
Compatible Scales & Modes
These scales contain all the notes of C♯sus4 and can be used for soloing, improvising, and writing melodies over this chord.
C♯ Mixolydian
Common in rock and pop — sus4 chords often resolve to major, and Mixolydian handles both.
C♯ Major Pentatonic
Simple and effective over suspended chords.