A major triad includes notes from three different classes of pitch: the root, the major 3rd and perfect 5th. This is the most relaxed, most consonant chord in all of harmony. Listen to four different C major triads. The chord symbol for a major triad is just the name of the root with no chord type modifier. For example the chord symbol Db specifies that the major triad built on Db using the pitch classes Db, F and Ab should be played.