TRACK_48N10E is a location-based, real-time application, mapping your surroundings to a virtual synthesizer. The mobile, web-based reality extension enables users to perceive their sonified environment while strolling. The soundscape is dynamically generated by urban and rural features of site-specific map data and changes with every single step. TRACK_48N10E encourages the exploration of known and unknown places by ear. Two places never look the same and therefore never sound the same. With each step the listener dives further into a unique, extended reality.