Exposition was written by Ritchie Blackmore, Nick Simper, Jon Lord, and Ian Paice who were all members of Deep Purple. It was recorded by Deep Purple in 1968. It was recorded as part of a medley with We Can Work It Out. We Can Work It Out was written by John Lennon and Paul McCartney. It was first recorded by The Beatles in 1965. Deep Purple’s version was released on their 1968 album The Book Of Taliesyn.