A C major triad is a basic chord in music that consists of three specific notes: C, E, and G. These notes are played together to create a harmonious sound. The C major triad is built by taking the root note C, adding the major third E, and then the perfect fifth G above it. In music theory, the C major triad is often used as a foundational chord in many songs and compositions. It is one of the first chords that beginners learn on instruments like the piano or guitar, making it essential for understanding more complex musical structures.