Csus2 chord
C suspended second
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The Csus2 chord has the intervals I, II, V with notes C, D, G
Matching Scales: C Major C Minor C Major Pentatonic D Minor D Blues D Minor Pentatonic G Major G Minor G Blues
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.