Metamorphosis is a real-time interactive audio-visual composition for one human performer and two artificial intellectual performers. Three performers will start by playing the same virtual ancient Chinese percussion instrument: Bianqing (磬). Then, by learning, imitating, having confrontation and cooperation with each other, the shape and sound of this instrument will evolve gradually and the performers themselves. From ancient to modern, concrete to abstract, the fusion of sound, image and live performance creates an immersive experience exploring the dramatic shift and co-evolution between human and AI.