B major is a musical key that consists of five sharps: F♯, C♯, G♯, D♯, and A♯. It is often described as bright and uplifting, making it popular in various music genres, including classical, pop, and jazz. The B major scale is built on the notes B, C♯, D♯, E, F♯, G♯, and A♯. In terms of chords, the primary chords in B major are B major, E major, and F♯ major. The key is frequently used in compositions by famous composers like Ludwig van Beethoven and Johann Sebastian Bach. Musicians often find it a rewarding key to play on instruments like the piano and guitar.