


2: Scenes from a Memory, and 2002's Six Degrees of Inner Turbulence cemented their place at the top of the metal heap. The recording that initially established their signature was second album 1992's Images and Words, while 1994's Awake, 1999's Metropolis, Pt. While five of their albums have charted inside the Top 20 of the Top 200, ten have placed inside the top half of the chart they have sold more than 12 million records globally. The band's ability to deliver tight, melodic, musically sophisticated songs and thematic concept recordings that encompass elements of hook-based hard rock, riff-fueled metal, syncopated prog, and sophisticated lyrics have made them the act that subsequent genre bands aspire to and are measured by. While the subgenre's origins can be traced to Rush's song "Bastille Day" in 1975, and Queensrÿche's 1988 concept offering Operation: Mindcrime was its first full-length album, Dream Theater have largely defined and expanded the music's horizons since 1986. The Long Island-based quintet Dream Theater are, in the 21st century, the standard bearers of progressive metal.
