D. M. B. stands for "Dancing with the Moonlight Knight," a song by the British rock band Genesis. Released in 1973, it is part of their album Selling England by the Pound. The song features poetic lyrics and a blend of progressive rock elements, showcasing the band's musical complexity. The track is notable for its intricate melodies and dynamic shifts, which are characteristic of Genesis's style during the early 1970s. It has been praised for its storytelling and emotional depth, contributing to the band's reputation as pioneers in the progressive rock genre.