D# Major is a musical key that consists of the notes D#, F## (G), and A# in its triad form. It is often used in various genres of music, including classical, jazz, and pop. The key signature of D# Major has six sharps, which can make it challenging for some musicians to play. In terms of its relative minor, D# Major is related to B# minor. This relationship means that both keys share the same key signature but have different tonal centers. D# Major is known for its bright and uplifting sound, making it a popular choice for composers and songwriters.