What makes Pergamon by Tangerine Dream notable?

'Pergamon' is significant as it reflects Tangerine Dream's transition into more experimental realms, contributing to their influence on the ambient and electronic scenes. The album received considerable attention in Europe and exemplified the band's ability to create atmospheric soundscapes that resonated with both critics and fans alike. By the time 'Pergamon' was released in January 1981, Tangerine Dream had solidified their reputation as pioneers of electronic music. This album followed their acclaimed soundtrack for 'Thief' (1981) and showcased their evolving sound with lengthy compositions that pushed the boundaries of ambient music.