Drawn together by a shared love of metal and prog rock, Riverside were founded in 2001 in Warsaw, Poland, by Mariusz Duda (vocals, bass, guitar), Piotr Grudzinski (guitar), Piotr Kozieradzki (drums), and Jacek Melnicki (keyboards). The quartet members intended to use their backgrounds in metal to explore new territory in prog rock along the lines of Dream Theater and Tool, creating spacious and experimental music with a metal edge. Even before their first record was finished, Riverside began to experience creative differences, with Melnicki (who was later replaced by current k...