Swedish electronic outfit The Knife’s fourth studio album, “Shaking the Habitual,” is shaking habits more serious than nail biting.

Released by the brother-sister duo’s own Rabid Records, the album focuses on political messages, namely radical feminism and gender fluidity. The short film accompanying the single “Full of Fire,” for example, was directed by feminist porn director Marit Östberg.

The songs are inspired by ’70s protest songs, according to Olof Dreijer. His sister Karin Dreijer Andersson added in a 13-minute film companion to the album called “The Interview” that they want to redefine The Knife into something less marketable and more meaningful.

The lyrics are certainly powerful, and Karin’s voice is deep and searching, but the album can be inaccessible and overwhelming in sound and content. Some listeners may not return to the album, but those who do will have much to interpret.