Add 2, Added Second. A chord with a note a major 2nd above the root added into the triad. For example, a C add 2 chord would be spelled as C, D, E, G.

Add 2, Added Second. A chord with a note a major 2nd above the root added into the triad. For example, a C add 2 chord would be spelled as C, D, E, G. pic.twitter.com/jWNLeWPFqK

— The Best Music Coach Music Word of the Week (@BestMusicWord) April 12, 2021

source https://twitter.com/BestMusicWord/status/1381463345719615489