Video prompt: A pianist is playing a grand piano on a stage, fingers moving swiftly over the keys. The notes resonate in the hall as the audience watches in silence.
Defect: Deformation (when Object is involved in an act,  anything in this process that's weird. e.g. people walk into a wall. "Walk" is an act)
Explanation: Carefully observe the pianist's fingers where they touch the keyboard; you can see that the pinky finger’s shape becomes distorted.