Video prompt: An engaging rock band practice harmonizes riffs and beats in anticipation of a local gig, chasing the excitement of performance with shared diligence and passion.
Defect: Deformation (any reason involved with a movement)
Explanation: As the person strikes the drumhead, the drumstick undergoes jittery blurring and shape distortion due to the rapid motion. The movement appears unnatural, with the drumstick intermittently flickering in and out, further disrupting the realism of the action.