Fig. 2
From: From raw audio to a seamless mix: creating an automated DJ system for Drum and Bass
Example of the compositional layout of a Drum and Bass song ([3], pp.287–292). A song typically starts with an intro, followed by a build-up that gradually increases the musical tension. This tension is released in a moment called the drop, which is the beginning of the main section or core ([3], p. 289) of the music, comparable to the chorus in pop music. After the main section, there is a musical bridge, also called a breakdown, that connects the first main section and the second build-up, drop, and main section. An outro gradually brings the music to a close. Note that this structure is not fixed and that many variations are of course possible