[5] In 1996, Mazurek formed the longstanding Chicago Underground Collective with guitarist Jeff Parker and drummer Chad Taylor, a unit that ranges in size from duo to orchestra.

The Collective earned Mazurek the attention of Chicago's underground community at the beginning of the 21st century, resulting in high-profile collaborations with other genre-defying artists like Gastr Del Sol, Jim O'Rourke, Sam Prekop, Stereolab and Tortoise.

[6] While living in Brazil from 2000 to 2005, Mazurek constructed exotic soundscapes from the sounds of the Amazonian rain forest, including electric eels recorded at INPA research laboratory in Manaus and audio culled from storm systems on the outskirts of Brasília.

He has collaborated with a wide variety of artists, such as Bill Dixon, Pharoah Sanders, Mike Ladd, Roscoe Mitchell, Yusef Lateef, Fred Anderson, Naná Vasconcelos, Mamelo Sound System, Alexandre Kassin, Marcelo Camelo, and others.

He has shown his multi-media works at locations throughout the United States and Europe, including the Rothko Chapel in Houston, Texas, where his paintings hang on the office walls.