Macro close-up of an abandoned grand piano with ivory keys suspended in infinite obsidian void, flowing liquid chrome mercury with iridescent oil-on-water rainbow oxidation spreading across frozen brass strings and hammered mechanisms, razor-sharp mechanical contours catching dramatic prismatic rim light, suspended metallic dust particles dancing in volumetric glow, deep void background with scattered platinum and pearl fragments, hyperrealistic 8k render, volumetric lighting carving luminous vintage instrument edges from darkness