Over the course of Melbourne’s RISING festival, local audio-visual artist Robin Fox alters the city-landscape with a newly commissioned laser composition. MONOCHORD features a powerful, one kilometre-long beam that, at regular intervals, articulates planes and patterns to synchronized sound just above the Yarra River. Playing the beam like a single-string instrument, Fox expresses the changing voltage both visually and sonically to create what he calls “mechanical synaesthesia.”