render-song-mv

# render-song-mv Assemble a song-driven music-video ad from a config: a purpose-written, **sung** song is the entire narration (no separate voiceover), and every visual beat is timed to the lyrics. The delivered song sets the timeline; N tableaux (one keyframe → one image-to-video clip per lyric beat, all in a single look pack) are cut to their lyric windows and hard-concatenated on the beat, captions are built from the song's OWN word timings with the hook line landing on the chorus drop, and the spot closes on a PIL brand end card. It reads like a tiny animated music video, not a demo. `scripts/config.example.json` is the worked example (Loóna "Fall In Love With Sleep Again", 28s paper-craft 9:16); `scripts/PIPELINE.md` maps every config block to its step and `scripts/README.md` documents the free assembly. ## Run This is the **FREE, deterministic** assembly stage — it spends nothing. The three paid inputs are separate capabilities: the sung song (`create-music-elevenlabs`, music_v1, force_instrumental FALSE — the lyrics ARE the script, returns mp3 + `words.json`), one keyframe per tableau (`create-image-fal`), and one Kling 3.0 i2v clip per tableau (`create-video-fal`). Given the delivered song + `words.json` + one clip per beat, `render-song-mv` cuts each clip to its lyric window, hard-concats on the beat, builds the lyric-synced captions, composites the PIL end card, and muxes → the master. Re-cuts reuse the existing song / keyframes / clips and cost **$0**. ## Contr...