Two DJs walk into a bar. One says, "Hey, want to go see a movie?" The other says, "I don't know, who's the projectionist?"

Playlist service allegedly lets users make playlists.

Dance record label Ministry of Sound is suing music streaming service Spotify, claiming Spotify playlists copy its compilation albums.

Ministry of Sound regularly releases collections of dance hits. The compilations are not on Spotify, but the label says Spotify infringes copyright because some users' playlists mirror the albums' track listings.

Ministry of Sound does not own the copyright to many of the tracks on its compilations, the majority of which have been licensed from other record labels.

Ministry of Sound said "a lot of research goes into" creating the compilations. "What we do is a lot more than putting playlists together," Ministry of Sound chief executive Lohan Presencer told The Guardian.

"Oh wait," he did not clarify, "Actually that is in fact all we do. My bad."

It contends that the law protects "the expertise and creative effort involved" in curating titles such as The Sound Of Dubstep Classics and Ibiza Annual 2013.

The company is seeking an injunction requiring Spotify to remove the playlists in question and to permanently block playlists that copy its compilations. It is also seeking damages and costs.

Leaving that part in just for the repeated lulz of The Sound Of Dubstep Classics.