C#sus2 chord
C# suspended second
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G
F#
G
G#5
A
A#
B
C
C#
D
D#
E
F
F#
G
G#
C
C
C#
D
D#2
E
F
F#
G
G#
A
A#
B
C
D#
E
D#
E
F
F#
G
G#5
A
A#
B
C
C#
D
D#
E
G#
A
G#
A
A#
B
C
C#1
D
D#
E
F
F#
G
G#
A
C#
3
5
7
10
The C#sus2 chord has the formula 1, 2, 5 with notes C#, D#, G#
Commonly used in pop, rock, and jazz, the suspended second chord usually has no third and therefore sounds open since it lacks a minor or major tonality. It can function as a preparatory chord before a resolution at the third.