Caila Thompson-Hannant a.k.a. Mozart's Sister has returned with "Eternally Girl," her first single since 2014's Being. The track doubles down on the Montreal artist's effervescent dance-pop, but the video exudes a refreshingly minimalist treatment. If you were the kind of kid who started hard at framed landscape pictures, imagining yourself inside them, you'll get a little burst of joy seeing Hannant dash to and fro across Blake Gilley and Tommy Keith's carefully composed shots. The "Eternally Girl" cassette single is out in mid September via Arbutus Records.