Echo layers as art test

Great artworks often contain multiple, overlapping 'echoes' — repeated sounds, motifs, phrases, or structural callbacks — layered across levels (word choice, formal motif, narrative structure). Those layered echoes create dense constraint networks so that altering one element damages the whole, explaining why some works feel organically unified and others do not. — If adopted, this heuristic changes how critics teach, evaluate, and curate art and how AI systems should be judged or trained to produce 'great' works.