concept album 
noun
A rock album featuring a cycle of songs expressing a particular theme or idea.The only thing less palatable than a concept album is an annotated concept album that explicitly states each song's plot and theme....
- Well, forgive me for saying so, but you can skip the introductory tracks because the whole idea of a concept album alone is enough to kill anyone's high.
- The idea of a hip-hop concept album is a rather silly affair to propose.