A close-up view of a piano keyboard shows a hand pressing adjacent keys one by one from left to right, moving steadily across the keys; instead of the notes increasing in pitch as the hand moves rightward, each successive key produces a lower-pitched note
Seedance 2.0ByteDance · proprietary
Kling 3.0 OmniKuaishou · proprietary
Veo 3.1Google · proprietary
LTX-2.3Lightricks · open
Ovi 1.1character.ai · open
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MagiHumanGAIR-NLP · open
Per-prompt rubric
Basic standards
Visual presence
- a hand
- a piano keyboard
Event: a hand presses adjacent piano keys one by one from left to right
Audio presence
- a piano
Sound: piano notes
Key standards
Visual physical commonsense (V-PC)
- A close-up view shows a hand pressing adjacent piano keys one by one from left to right with continuous physically plausible finger motion across multiple keys.
- The keyboard remains a recognizable piano keyboard with the standard arrangement of black and white keys throughout the clip.
Audio physical commonsense (A-PC)
- The notes have the percussive hammer-on-string attack and sustained timbre of a real piano.
- Each successive note is noticeably lower in pitch than the previous note throughout the sequence.
Cross-modal physical commonsense (AV-PC)
- Each piano note onset aligns in time with a visible key press by the hand.
- The pitch decreases progressively as the hand visibly moves rightward across the keys.