Flova Music Mv Production

Music MV Production

Mission

用于音乐 MV 与音画同步短片：以音乐为主时间线，先分析音频结构，再规划视觉段落、关键元素、分镜、视频片段和最终合成。

This workflow is audio-led. The music structure controls shot timing, cut points, movement intensity, lip-sync windows, choreography counts, and final assembly.

JarvisHub Execution Model

• 主 Agent 负责编排：读取画布事实、整理任务 brief、按阶段同步 TodoWrite 进度，并把已确认的文本成果写入画布；媒体生成、等待、拼接和评审交给具备相应能力的执行 agent 或当前可用工具。TodoWrite 不是画布写入前置条件。
• 图像、视频和拼接交给具备媒体能力的执行 agent：brief 给出稳定输出身份、用途、真实参考 URL 和关键约束；需要下游引用时必须等待真实 imageUrl / videoUrl，不能把提交态当完成态。
• 多模态验收交给 critic sub-agent：只读取真实媒体并评审，不生成、不补素材。
• 当前已知 canvas 工具集没有通用音频生成、音频驱动口型、末帧抽取或视频直改工具；旁白、BGM、字幕、末帧承接和精准 lip sync 只能作为后期合成计划或 blocked 项，除非本轮工具列表明确暴露对应能力。

When To Use

Use this skill for:

• music video from uploaded audio,
• lyric-synced MV,
• singer or avatar lip-sync MV,
• beat-cut dance video,
• flat illustration character choreography,
• anime OP or ED,
• idol group MV,
• epic instrumental visual MV,
• music-driven montage or visualizer short.

Do not use it for product ads with only background music unless the music controls the edit. Use product/commercial skills for product-first work.

Canvas-Native Boundary

Follow the JarvisHub Execution Model. Use only tools and model choices exposed by this turn's tool list.

Map responsibilities:

• audio analysis -> current audio/file analysis capability,
• script/storyboard -> current storyboard planner,
• character/scene/style assets -> current image generation and reference-binding tools,
• lyric/lip-sync clips -> current audio-driven video tool if exposed,
• non-lip-sync clips -> current image/video generation tools,
• assembly -> current canvas/video assembly tools.

If the harness cannot perform exact audio analysis, lip-sync, vertical generation, subtitles, or final assembly, return the best runnable plan/prompts and mark the blocked stage.

Required Intake

Collect:

• uploaded music or requested generated music direction,
• target duration and selected segment if the audio is long,
• aspect ratio and platform,
• MV mode,
• output language for lyrics/dialogue/subtitles,
• whether lyrics, subtitles, VO, or lip-sync are required,
• existing character/scene/reference assets,
• visual style and forbidden elements,
• final deliverable: storyboard, prompts, clips, or assembled video.

If no audio is provided:

• ask whether to generate/choose a BGM direction,
• do not claim beat-accurate editing until an audio file or generated audio exists.

Mode Selection

Choose one primary mode:

Secondary modules may be mixed only when they do not fight the primary mode. For example, a flat illustration dance MV can borrow anime OP transition grammar, but it should still keep dance timing as the master.

Workflow

1. Analyze audio and references.
2. Lock final video spec.
3. Build music timeline map.
4. Create visual concept and key elements.
5. Draft storyboard with shot-level timestamps.
6. Bind or generate assets.
7. Generate keyframes if needed.
8. Generate video clips by shot.
9. Assemble to the music timeline.
10. Run audio-visual QA.

Pause after:

• audio/timeline analysis,
• final video spec,
• storyboard,
• key assets,
• first generated clip or first batch,
• final assembly.

For autonomous runs, use critic review as the confirmation substitute and state the decision.

Audio Timeline Map

Create a structured timeline before visual generation.

Minimum fields:

• audio_id,
• duration_ms,
• bpm if detectable,
• meter if detectable,
• sections: intro, verse, pre-chorus, chorus, bridge, outro, drop, build,
• strong_beats: timestamp list,
• energy_curve: low, medium, high, drop, release,
• lyric_lines: line_id, text, start_ms, end_ms if available,
• cut_windows: recommended cut points,
• performance_windows: where singer/dancer/lip-sync should appear.

Rules:

• Do not cut through a lyric phrase unless the user explicitly asks for glitch/fragmented editing.
• For lyric-sync shots, include about 0.5-1s buffer around phrase boundaries when possible.
• Keep generated lip-sync clips at original timing. Do not time-stretch lip-sync output in final assembly.
• If the audio is longer than the requested duration, propose a segment with clear start/end timestamps.

Final Video Spec

Lock:

• title,
• primary mode,
• duration and exact audio segment,
• aspect ratio,
• platform,
• visual style,
• output language,
• subtitle policy,
• lip-sync policy,
• asset policy,
• clip generation strategy,
• final assembly strategy,
• QA criteria.

If the user changes the audio segment, regenerate the timeline map and dependent storyboard timing.

Key Elements

Register:

• performer/lead character,
• secondary characters or idol members,
• recurring scenes,
• stage/set,
• key props,
• style references,
• uploaded music as the master audio layer.

For characters, store:

• identity anchors from uploaded references,
• outfit variants,
• movement limits,
• facial/performance tone,
• voice or singing role if supported.

For flat illustrations:

• classify flat art vs realistic/rendered reference,
• extract linework, color, costume, silhouette, movable parts,
• if only a head/bust exists, mark full-body details as inferred and ask before generating full-body references.

For idol/group MV:

• define each member's role without sexualized styling,
• keep natural, youth-oriented performance energy,
• track group blocking and safe composition for 9:16.

Storyboard Rules

Every shot must include:

• shot_id,
• timestamp_start,
• timestamp_end,
• audio_anchor: lyric line, beat range, section, or drop,
• visual_role: performance, narrative, dance, scene, insert, transition, ending,
• key_elements,
• framing,
• camera_movement,
• subject_motion,
• cut_or_transition,
• audio_notes,
• continuity_from_previous,
• generation_path: lip-sync, image-to-video, text-to-video, or assembly-only.

Timing rules:

• dance/cardio shots should land major pose changes on strong beats,
• high-energy sections can use shorter shots,
• calm sections need longer shots and fewer visual events,
• chorus/drop should contain the clearest identity/performance beat,
• ED/ending segments should slow down and leave room for credits only if exact text is supplied.

Do not invent readable credits, logos, lyrics, or on-screen text. Use post/assembly for exact text when supported.

Mode Details

Audio Lip-Sync MV

Use when the user wants singing, rapping, talking, or avatar performance.

Rules:

• Final audio must exist before final video generation.
• Lyric lines must be mapped to shot windows.
• Use audio-driven video only for shots where the visible performer should mouth the audio.
• Use non-lip-sync clips for B-roll, memory shots, dance cutaways, and environment shots.
• Warn the user if they request lip-sync generation before final audio is locked.

Prompt should describe visible performance:

The performer sings the selected audio phrase with [emotion], [body action], [camera movement], no subtitles, no random text, no extra music.

Instrumental Epic MV

Use for orchestral, trailer, heroic, sci-fi, battlefield, landscape, or purely visual music videos.

Rules:

• No lip-sync, no narration, no subtitles by default.
• Use section-level emotional escalation: quiet setup -> build -> climax -> release.
• Wide shots should dominate when scale is important.
• Match repeated musical motifs with repeated-but-escalating visuals.
• Keep lighting and palette consistent across each section.

Prompt emphasis:

• visible scale,
• atmosphere,
• large-space camera movement,
• silhouettes or partial figures when identity is not important,
• no speech, no singer, no subtitle text.

Flat Illustration Dance MV

Use when a single 2D character, mascot, pet, or illustration must become a dancing MV.

Rules:

• User image is the identity anchor.
• Confirm full-body availability before choreography.
• Plan choreography in 8-count blocks.
• Create or bind full-body/pose references before video if the source is cropped.
• Keep the character's line style, color palette, silhouette, and costume consistent.
• Use secondary motion: hair, sleeves, skirt, ribbons, accessories.

Storyboard should include:

• count range,
• footwork,
• arm/hand pose,
• torso/weight shift,
• expression,
• camera scale,
• transition by pose, occlusion, or match movement.

Anime OP/ED

Use for opening/ending sequence grammar.

Rules:

• Confirm OP, ED, or both.
• 90s TV-anime style duration is usually 90s unless user requests a short version.
• OP can be character-introduction, story-preview, or emotional-montage.
• ED can be slower, reflective, or credits-oriented.
• If ED credits are requested, require exact names/text before adding them.

Common OP structure:

1. title or world image,
2. lead character reveal,
3. group/relationship montage,
4. conflict or promise,
5. high-energy action/performance,
6. ending hero frame.

Common ED structure:

1. quiet motif,
2. character alone or traveling,
3. emotional object/landscape,
4. group echo or memory,
5. fade-out / credits if text is supplied.

Youth Idol MV

Use for school, summer, friend group, documentary handheld, practice-room, stage, and group performance videos.

Rules:

• Keep styling natural and non-sexualized.
• Prioritize believable friendship, imperfect movement, handheld presence, and warm documentary moments.
• Build from daily life -> practice -> group energy -> stage/chorus -> sunset/afterglow.
• For vertical output, avoid wide horizontal group lines; use depth stacking and single/duo closeups.

Useful scene pool:

• classroom after school,
• rooftop,
• train platform,
• riverside,
• sports field,
• convenience store exterior,
• practice room,
• festival lights,
• sunset walk.

Prompt Rules

Write prompts in the language that best fits the this turn's tool list. Keep exact lyrics/dialogue in the intended output language.

Image/keyframe prompts:

• visible content only,
• reference placeholders and element IDs,
• camera/framing,
• lighting and palette,
• identity/style constraints,
• no random text unless exact approved text is required.

Video prompts:

• start from the shot's confirmed storyboard,
• describe motion, not backstory,
• specify subject motion, background motion, camera motion, and cut/transition,
• include no subtitles, no random text, and no extra music unless the tool needs another convention.

For music-led cuts:

cut on the downbeat at [timestamp], movement lands on the beat, final pose holds for the transition

For clips that will be assembled under the master audio:

silent video track, no embedded music, no subtitles

Assembly Rules

Use the uploaded/generated music as the master audio track.

Assembly checklist:

• clip order matches storyboard timestamps,
• cuts land on planned beats or lyric boundaries,
• lip-sync clips are not speed-changed,
• video clip internal audio is muted unless intentionally used,
• subtitles/lyrics are added only if exact text and safe area are known,
• transitions match the section energy,
• final fade or ending pose matches audio ending.

For missing clips:

• use best available B-roll or keyframe hold only after marking the gap,
• do not silently shift lyric/lip-sync timing to hide missing footage.

QA

Before calling the MV complete, verify:

• master audio is present and aligned,
• all shots cover the requested duration,
• no lyric phrase is accidentally cut mid-word,
• identity/style references remain consistent,
• dance/performance beats land on music,
• no accidental subtitles, watermarks, logos, or random text,
• aspect ratio and platform safe zones are respected,
• mode-specific rules are satisfied.

If QA fails, fix the smallest affected unit: one prompt, one asset, one shot, or one assembly segment. Do not regenerate the whole MV unless the core audio timeline or visual concept changed.