The A♯ Major chord is a triad consisting of three notes: A♯, C♯, and E♯. It is built by stacking two major thirds on top of the root note, A♯. This chord is often used in various music genres, providing a bright and uplifting sound. In music notation, the A♯ Major chord can be represented in different ways, such as in chord charts or sheet music. It is important for musicians to understand its structure and how it relates to other chords, including its relative minor, F♯ minor, for effective composition and performance.