Mashup (music) Definition

mashup or bootleg (also meshmash upmash-upblend and bastard pop/rock) is a song or composition created by blending two or more pre-recorded songs, usually by overlaying the vocal track of one song seamlessly over the instrumental track of another. To the extent that such works are "transformative" of original content, they may find protection from copyright claims under the "fair use" doctrine of copyright law.

Mashups are known by a number of different names:
  • Bootlegs (mostly in Europe)
  • Boots (but not Booty which is a branch of Electro)
  • Mash-ups
  • Mashed hits
  • Smashups (or Smash-Ups)
  • Bastard pop (as in the combined songs are unofficial; this term is rarely used any more)
  • Blends
  • Cutups (or cut ups, a term originally coined by William S. Burroughs to describe some of his literary experiments that involved literally "cutting up" different texts and rearranging the pieces to create a new piece.)
  • Powermixing (usually the pace has to be speeded up to allow for more song to be played and thus cannot play any single blend for the full length of the song)
  • Crossovers, but it is in a form of mashup, or version vs. version.
In addition, more traditional terms such as "edits" or (unauthorized) "remixes" are favored by many "bootleggers" (also known as 'leggers).

More info about Mashups in http://en.wikipedia.org/wiki/Mashup_(music).