Guitarist John Petrucci previously said the 34-track record, which is split into two acts and set roughly 300 years in the future, was inspired by today's fast-moving technology.

He said: "There's already self-driving cars that they're experimenting with. Pretty soon, we'll be looking back, like, 'Oh, remember when you used to have to drive yourself?'

"Being a musician, and since music is such an important part of my life and people that surround me, I knew that music had to be a central theme. That with all the advances in technology, how music becomes less and less important and just really easy to stream and quickly listen to a song and make something up on your phone.