An A-flat Major chord is a three-note chord that consists of the notes A-flat, C, and E-flat. It is built by taking the root note, A-flat, and adding the major third, C, and the perfect fifth, E-flat. This chord is commonly used in various music genres, providing a bright and uplifting sound. In music notation, the A-flat Major chord is often represented by the symbol "Ab" or "A♭." It can be played on various instruments, including the piano and guitar, and is frequently found in compositions across classical, jazz, and popular music styles.