Drum and Bass can be distinguished from other divisions of Electronica by its emphasis on only rhythmic structures and bass hits; it very rarely contains any sense of melody or harmony (if it does utilize chords or melodies, they are very short motifs, repeated so as not to take away from the constantly changing beat). Additionally, Drum and Bass sometimes employs heavy Rap-style vocals or Spoken Word. Jungle is very similar to Drum and Bass in its reliance on rhythm as the main focus, except that it utilizes exceedingly fast beats often accompanied by a short, repeating melody line or sound as well as time compressed voice samples which play at an almost "Alvin and the Chipmunk's"-like timbre. Jungle also draws from Reggae as a source for rhythmic styles and samples.