ABBA have discussed how they were treated as the “enemies” of progressive music in their home country of Sweden during their 1970s heyday.The band, who announced their reunion this summer for a “revolutionary” residence of live shows in London and a new album called ‘Voyage’ (out November 5), gained worldwide success across the globe, but left many at home feeling less than satisfied.“You know, in Sweden, there was this progressive movement in music, and we were the enemies,” Björn Ulvaeus