Scottish experimental filmmaker Luke Fowler will be present for a program of recent work on Thursday night at the Gene Siskel Film Center, part of Conversations at the Edge. Sound art and experimental music have been important concerns for Fowler from the start of his career—a 2006 program at the Siskel featured his experimental documentaries about oddball British musician Xentos Jones, who played in the Homosexuals and Die Computer Die, and brilliant composer Cornelius Cardew. But the films screening this week represent a major progression for Fowler: the sound artists documented in his A Grammar for Listening series are collaborators, not subjects.