What key is a thousand years in?
What is cadd9 chord?
True to its name, the Cadd9 chord is a 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.