Brise-Glace was an experimental rock project formed in the early 1990s by multi-instrumentalist Jim O’Rourke. Known for its avant-garde approach to composition and improvisation, the group blended elements of noise, jazz, and post-rock into densely layered soundscapes. Featuring members from acts such as U.S. Maple and The Flying Luttenbachers, Brise-Glace released its sole album, *When in Vanitas...*, in 1994 on Skin Graft Records. The project is celebrated for its fearless experimentation and lasting influence on Chicago’s underground music scene.