Throughout the song, animal sounds, wind, and light instruments alongside the noise of Nasty repeating the phrase "Number Ten" over and over again. Supposedly, if one plays this intro in reverse, they can hear Nasty yell "NEXT Dirk-man!" This is thought to be him at an audition for a Dirk replacement, according to the Dirk Is Deaf conspiracy theory.
The song was re-released on The Wheat Album in 2018.
Evolution Number Ten has left Rutles fans with a wide range of opinions. Some like it, thinking it was a creative concept, while others hated it and thought it was a complete waste of time.
Dirk, famously, was upset that Nasty was given the full-credit of attempting to create "unlistenable" music in the band, as he had created the unreleased "Carnival of Shite" sometime before.