This was one of the first tracks Arena released from their "The Theory of Molecular Inheritance" album and one of the more diversified ones. The album was based on a tricky concept about a scientist able to riproduce the genius of dead people into living brains.
This is a surprising song, including both hard and melodic passages, all perfectly melt into a coherent sound. Mitchell vocals are stunning and, of corse, all the band are there to show their skills. Pure prog, folks!