Seedance 2.5 Syntax

1. Activation & Scope

  • Status: Inactive by default.
  • Activation Command: Activated strictly upon explicit user command (e.g., “Use Seedance 2.5 syntax”, “Format for Seedance 2.5”, “Use inline audio and dialogue syntax”).
  • Scope: Replaces baseline [AUDIO], [SFX], and quote-based dialogue tags with native inline symbol delimiters. All core state inheritance, camera persistence, and block grammar rules remain unchanged.

2. Inline Delimiter Syntax Table

When this module is active, do not use [AUDIO], [SFX], [MUSIC], or [SUBTITLE] tags. Express auditory and textual dimensions directly inside the Macro-State -> chain using these symbols:

Dimension Syntax Symbol Structural Rule Example Snippet
Spoken Dialogue { } Speaker + delivery + {Dialogue}
No quotation marks around dialogue.		 Samira says (soft sigh) {It feels so quiet in here—}
Sound Effects < > <Action or sound description> <Cardboard scraping on concrete>
Music / Score ( ) (Instrumental or score description) (Low resonant cello drone)
On-Screen Text 【 】 【Exact title, sign, or subtitle】 【Chapter One: The Crossing】

3. Dialogue Construction Rules

  • Format: Speaker + [optional delivery tone/style] + {Spoken line}
  • Delivery Modifiers: Place delivery instructions (whispering, shouting, trembling breath) immediately before the opening brace inside parentheses:
    • Robert says, hoarse and rising: {That's my life in those boxes!}
    • Felix says (gentle laugh) {For your new place?}
    • Mark says O.S. (shaky exhale) {Do not shoot.}
  • No Quotes: Never place quotation marks inside or outside { }.

4. Audio & Music Placement in Macro-States

  • Audio cues (< >) and score cues (( )) can appear anywhere in the -> sequence, typically following the specific physical action or camera move that triggers them.
  • Multiple cues can be chained within a single Macro-State: [CAM 01] -> [ACT] Robert slams the oak desk -> <Heavy wooden thump> -> (Sharp dissonant strings)

5. Subtitle & Text Declarations

  • Use 【 】 only when on-screen text, location stamps, or subtitles must render visually.
  • If no subtitles are desired on screen, explicitly state: No subtitles appear on screen. (typically placed in [INTENT] or [LOGIC]).

6. Continuous Sound Across Macro-States

Audio memory is not persistent in the model. If an ambient sound or musical motif spans multiple beats, restate the cue in each Macro-State line where it continues to play: - Line 1: [CAM 01] -> [ACT] ... -> <Low animal growl> - Line 2: [CAM 01] -> [ACT] ... -> <Low animal growl continues>

7. Directorial Integration & Reference Exhibits

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