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Hands gently pluck a classical guitar, but each string produces a bright piano keystroke sound perfectly synced to the finger motion.

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Per-prompt rubric

Basic standards

Visual presence

  • a classical guitar
  • hands

Event: hands pluck the strings of a classical guitar

Audio presence

  • a classical guitar

Sound: piano keystroke sounds

Key standards

Visual physical commonsense (V-PC)

  • A classical guitar is clearly visible and is plucked on its strings by hands with continuous physically plausible plucking motion.
  • The instrument remains a recognizable classical guitar throughout the clip, without morphing into a piano or any other instrument.

Audio physical commonsense (A-PC)

  • Each pluck sound is a bright piano keystroke with the percussive hammer-on-string attack and sustained piano timbre rather than the plucked-string sound of a real guitar.

Cross-modal physical commonsense (AV-PC)

  • Each piano keystroke sound aligns in time with a visible finger pluck on a guitar string.