D-Minor is a musical key that is often associated with a somber or melancholic mood. It consists of the notes D, E, F, G, A, B♭, and C. This key is frequently used in various genres, including classical, jazz, and popular music, to evoke deep emotions. Many famous compositions are written in D-Minor, such as Ludwig van Beethoven's "Piano Sonata No. 8" and Johann Sebastian Bach's "Toccata and Fugue in D minor." The key's unique sound makes it a popular choice for composers looking to convey drama and intensity in their music.