What makes Wiederhören by Kraan notable?

'Wiederhören' is notable for its innovative fusion of styles, influencing the development of jazz rock and krautrock. Critics have recognized it as a significant work within Germany's progressive music landscape, earning a spot in various collections celebrating the genre's evolution during the late '70s. By the time 'Wiederhören' was released in 1977, Kraan had solidified their presence in the progressive music scene following their breakthrough album 'Kraan 1' in 1972. This album marked their evolution into more intricate compositions and a blend of genres, showcasing their artistic growth after several successful releases.