What does this mean?
It’s using a Cadd9 chord
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Answer:
C chord with a 9th note
Explanation:
C chord with a 9th note “added” to the mix. It's comprised of four notes: C, E, G and D. Notice that the D is the 9th note that gives the Cadd9 chord its extra flavor. Try playing a C chord and then play a C9 chord to hear that extra punch that ninth note delivers.