DnB is an easy, lazy and short way to abbreviate music style called Drum and Bass, often also called as Drum'n'Bass/Drum n Bass/Drum 'n' Bass/D'n'B/D&B/Drums and Basses. It's advisable to use more commonly used tag drum and bass instead, despite the content of it has often not-so-well-liked styles by the purists. .