The C-sharp minor scale is a musical scale that consists of the notes C♯, D♯, E, F♯, G♯, A, and B. It is the relative minor of the E major scale and is often used in various musical genres to convey a somber or emotional tone. The scale follows a specific pattern of whole and half steps, which contributes to its unique sound. In terms of key signature, the C-sharp minor scale has four sharps: F♯, C♯, G♯, and D♯. This scale is commonly used in classical music, as well as in contemporary genres, making it an important element for musicians and composers alike.