The chord notes on the

The notes of the C sus2 chord
C, D, G
The scale degree of a sus2 chord
1, 2, 5 
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Display total frets:
CDG  
C sus2 chord note names

Sus2 chords in all keys

KeyNotes
Csus2 chordC, D, G
C♯sus2 chordC♯, D♯, G♯
Dsus2 chordD, E, A
D♯sus2 chordD♯, F, A♯
Esus2 chordE, F♯, B
Fsus2 chordF, G, C
F♯sus2 chordF♯, G♯, C♯
Gsus2 chordG, A, D
G♯sus2 chordG♯, A♯, D♯
Asus2 chordA, B, E
A♯sus2 chordA♯, C, F
Bsus2 chordB, C♯, F♯