The "Karn Evil" suite was written with live performance in mind, and it served ELP well as a concert favorite. The band's previous album was Trilogy
, which contained songs that required sound effects and other assistance to play live. In our interview with Greg Lake
, he explained: "We decided that the next album we made, we would make sure that we could perform it live. And so, I know it sounds horribly extravagant, but this is what we did: We bought a cinema in London and we set up on the stage, and we wrote the album, performing it on the stage in the theatre. So as we created the album, we made sure that we could perform it live.
So it came about, this line, 'Welcome back, my friends, to the show that never ends.' It was a kind of live idea behind it."