The successful progressive metal band Dream Theater released their debut studio album 'When Dream and Day Unite' in 1989. With Charlie Dominici on vocals they took their first step in becoming one of the worlds best known bands in the progressive metal. It's their shortest release, but one in which you can hear what later became the signature of the band. With shreddy riffs and jazzy signatures the band putted their influences out of '70s and '80s progrock. As a milestone in the evolution of progressive metal it's an album full of atmospheric keyboard sounds, epic vocals and some powerful riffs.