A pattern is basically when some part of the music repeats itself. (it can be the bass drum, a symbol clash, the bass line or anything). You will find on drum and bass tracks that if you count to four and start over again and match your count of four to the pattern you would count around 40 -50 bars. That is 160 -180 bpm. Beatsuite.com has a selection of royalty free drum and bass music ranging from the relaxing, chilled out vibe right through to the faster and more manic Jungle sound. We’d also recommend edgy beats and breakbeat for similar tracks. Drum and bass or drum n bass and commonly abbreviated to DnB emerged in the mid 1990s. About Drum And Bass: The history of D&B is a history of fusion. Born out of London's melting pot in the early 1990s, D&B represented the next evolution of jungle music, itself an early amalgam of dub, reggae and hip-hop. The divide has always been blurred, however, and no true fan would ever proclaim jungle and D&B to be mutually exclusive. Download ready-to-use DJ tools online: Our sample packs deliver club-ready wav samples, remix tools and sound effects such as intros, beats, breaks and drops ready to use in Traktor, Serato DJ Pro and Virtual DJ software. All audio sound libraries are available to download 100% royalty-free for use in your commercial music productions.