Progressive metal is defined by its dynamic range. Between John Petrucci’s intricate guitar solos, Jordan Rudess’s cinematic synth layers, and Mike Mangini’s (or Mike Portnoy’s) polyrhythmic drumming, there is a lot of "data" in a Dream Theater song.
Dream Theater’s elaborate stage shows and high-production albums are expensive to produce. Pirating their music denies them the revenue needed to continue touring and recording. Better Alternatives to Torrents Dream Theater Discography 320 Kbps Torrent
You lose the crispness of the cymbals and the deep resonance of the bass. Progressive metal is defined by its dynamic range