Karin Dreijer Andersson and Olof Dreijer from Swedish electronic music duo The Knife perform live on stage at Lowlands festival in Biddinghuizen, Netherlands in August. Paul Bergen/Getty Images hide caption

toggle caption Paul Bergen/Getty Images

Clockwise from upper left: Early photo of My Bloody Valentine, Grouper, The Knife, Ballake Sissoko. Courtesy of the artists hide caption

toggle caption Courtesy of the artists

Something beautiful happens in the midst of The Knife's 90-minute electro-opera, based on Charles Darwin's The Origin of Species: The music itself evolves as the album progresses. Courtesy of the artist hide caption

toggle caption Courtesy of the artist

NPR thanks our sponsors

Become an NPR sponsor

Support comes from