What makes Riverrun (Underworld project) by Underworld notable?

Although not commercially mainstream, 'Riverrun' is notable for its unique structure as a continuous piece, reflecting the duo's innovative approach to electronic music. The album received positive feedback from niche critics, who praised its artistic ambition and depth. Its release further solidified Underworld's status as pioneers in blending live performance with electronic music. By the time 'Riverrun' was released in 2006, Underworld had already achieved significant acclaim with their earlier albums like 'Second Toughest in the Infants' (1996) and 'A Hundred Days Off' (2002). This project marked a shift towards more experimental sound design, showcasing their ability to evolve while maintaining their electronic roots. 'Riverrun' is often considered a culmination of their explorations in immersive live performance and sound experimentation.