Dream Theater Discography 1986-2009 -mp3 320 Kb... -

The early 2000s saw the band experimenting with new sounds and themes. , a concept album exploring the psychological effects of being trapped in an octagonal room, featured a more progressive and avant-garde approach. "Auguste Rouchere" was scrapped; however " "Systematic Chaos" (2007) and "Black Clouds & Silver Linings" (2009) saw the band returning to their roots, with a renewed focus on heavy riffs, complex arrangements, and conceptual themes.