A surreal, abstract, ethereal image visually representing the memory of a sound: a single, final cello note played in an empty, cavernous concert hall. The image is not of a cello or a player. Instead, the center of the composition is a stable, perfect, shimmering wave of golden light, shaped like a soundwave, that hangs frozen in the air. This light-form is slowly crystallizing into intricate, geometric, amber-like structures at its edges. From this central form, ripples of distorted space, like heat haze or water, emanate outwards, subtly warping the architecture of the background. The background is a vast, empty concert hall made of dark, polished wood and decaying velvet seats, all seen through a dream-like, soft-focus filter. Dust motes, rendered as tiny, self-illuminated orbs, float in the air. The only other light is a sliver of cold, blue moonlight coming from a single, high, arched window, which illuminates the dust but is overpowered by the central golden soundwave. The overall mood is one of profound, beautiful, and final silence. Conceptual art, high contrast, emotionally resonant.