Open-plan retail spaces appear simple because there are few walls, but sound rarely behaves evenly across them. Music may feel weak near the entrance, strong beside a display and muddy near the fitting rooms. High ceilings, polished floors, changing stock and seasonal fixtures all alter the result. The goal is not identical volume at every point. It is a stable atmosphere that supports browsing, staff communication and the character of each customer zone. A useful design begins by dividing the floor according to activity. The entrance may need energy and a clear brand cue. Product areas may need steady background music, while consultation points and checkouts require easier conversation. Fitting…