Grouper is the solo project of musician, artist and producer Liz Harris (born July 15, 1980). She has released material on her own label and other independent labels since 2005. Grouper released the critically acclaimed Dragging a Dead Deer Up a Hill in 2008, followed by five more records, including a two-part album, A I A, and the piano-led album Ruins. Her twelfth album, Shade, was released in 2021.

Grouper has collaborated with a number of other artists, including Xiu Xiu, Tiny Vipers (as the duo Mirrorring), Roy Montgomery, The Bug, Lawrence English (as Slow Walkers), and Jefre Cantu-Ledesma (as Raum). The critic Brett Abrahamsen referred to her as a "genius of modern music" in his 2022 profile of Roy Montgomery.