Maer is a new dark folk/chamber prog project from Anna Murphy (Cellar Darling) and Marjana Semkina (Iamthemorning). The first single Sister also features Benjamin Baret of Ne Obliviscaris and Keli Guðjónsson of Agent Fresco. The video was directed by Eggor Kree and the song was produced by Anna Murphy and co-produced by Marjana Semkina. The lyrics of the song are about love, loss, and denial. The video credits and song credits are also mentioned in the text.