The chord notes on the

The notes of the C sus4 chord
C, F, G
The scale degree of a sus4 chord
1, 4, 5 
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Display total frets:
CFG  
C sus4 chord note names

Sus4 chords in all keys

KeyNotes
Csus4 chordC, F, G
C♯sus4 chordC♯, F♯, G♯
Dsus4 chordD, G, A
D♯sus4 chordD♯, G♯, A♯
Esus4 chordE, A, B
Fsus4 chordF, A♯, C
F♯sus4 chordF♯, B, C♯
Gsus4 chordG, C, D
G♯sus4 chordG♯, C♯, D♯
Asus4 chordA, D, E
A♯sus4 chordA♯, D♯, F
Bsus4 chordB, E, F♯