Hindi Consonants as a Glowing Motion Atlas

Make a {LENGTH}-minute music video that teaches the Hindi consonants (व्यंजन), set to the song at {AUDIO_FILE}, entirely in code: one HTML page with a deterministic renderFrame(t), captured frame by frame with a headless browser and muxed with ffmpeg at 1920×1080, 30 fps. Detect the song's beats first and cut every scene on them. Open on the शिरोरेखा, the headline every letter hangs from, then a chart of all consonants by place of articulation (कंठ्य to ऊष्म) and voicing. Give each consonant its own scene: the letter in large glowing Devanagari while its object animates like a science diagram, for example क से कबूतर with pigeons taking off, घ से घड़ी with a ticking clock, च से चश्मा with a lens ray diagram, ठ से ठठेरा at an anvil with sparks, प से पतंग on a string, ब से बूँद with ripples. Show conjuncts like त + ् + र = त्र and end on ज्ञ से ज्ञान in a burst of light. Look: near-black #0a0a0b, one orange accent #ff5a1f, a few cream #ede6da paper-form scenes with a red stamp, thin HUD corners, tiny mono labels and IPA readouts, Anek Devanagari and JetBrains Mono, light bloom and film grain. Render a still of every scene and fix it before the final render.