{
  "name": "Engines that stay distinct muted",
  "durationSeconds": 16,
  "chapters": [
    {
      "start": 0,
      "end": 4,
      "narration": "New engines must read without sound."
    },
    {
      "start": 4,
      "end": 8,
      "narration": "Beat smoothing serves the composition."
    },
    {
      "start": 8,
      "end": 12,
      "narration": "Modes are products, not palette swaps."
    },
    {
      "start": 12,
      "end": 16,
      "narration": "Editor controls stay mode-specific."
    }
  ]
}