The D major scale is a seven-note musical scale that consists of the notes D, E, F♯, G, A, B, and C♯. It follows a specific pattern of whole and half steps: whole, whole, half, whole, whole, whole, half. This scale is commonly used in various music genres, including classical, pop, and rock. In music theory, the D major scale is often used as a foundation for creating melodies and harmonies. It is also the key signature that features two sharps, making it a popular choice for composers and musicians. Understanding this scale is essential for playing in the key of D major.