Replace Section music editing API

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选择来源段落

确定已完成曲目并聆听需要修订的段落，保留任务/音轨标识与原录音，用于修改前后的检查。

{
  "model": "replace-section",
  "input": {
    "task_id": "WC08A0TNOI23JRRE",
    "audio_id": "483b67b8-0433-4000-adde-079b765859a6",
    "prompt": "[Chorus]\nOpen up the day again\nLet the sunlight wander in\nEvery path begins right here\nOne small step and skies are clear",
    "tags": "Warm indie folk, acoustic guitar, light hand percussion, clear lead vocal",
    "title": "Windows After Rain Revised 1",
    "infill_start_s": 20,
    "infill_end_s": 40,
    "full_lyrics": "[Verse]\nRain has left the window bright\nMorning folds away the night\nOn the table, bread and tea\nThere is room for you and me\n[Chorus]\nOpen up the day again\nLet the sunlight wander in\nEvery path begins right here\nOne small step and skies are clear"
  }
}

设置开始与结束时间

在来源时长内以秒为单位准备 infill_start_s 与 infill_end_s，并在提交替换之前检查选定窗口及边界。

描述替换段落

通过 prompt 描述新歌词或音乐内容，tags 描述风格，title 设置结果标题，并在检查编辑段落时，将文字方向与时间窗口一并保存。

{
  "model": "replace-section",
  "input": {
    "task_id": "WC08A0TNOI23JRRE",
    "audio_id": "9fc21b20-0c58-4d17-8d26-5a58a161ccbf",
    "prompt": "[Chorus]\nOpen up the day again\nLet the sunlight wander in\nEvery path begins right here\nOne small step and skies are clear",
    "tags": "Warm indie folk, acoustic guitar, light hand percussion, clear lead vocal",
    "title": "Windows After Rain Revised 2",
    "infill_start_s": 20,
    "infill_end_s": 40,
    "full_lyrics": "[Verse]\nRain has left the window bright\nMorning folds away the night\nOn the table, bread and tea\nThere is room for you and me\n[Chorus]\nOpen up the day again\nLet the sunlight wander in\nEvery path begins right here\nOne small step and skies are clear"
  }
}

准备完整歌曲上下文

通过 full_lyrics 提供完整更新后的歌曲文字；当前在线表单将其设为必填，直接 API 中为可选。检查段落如何衔接整首歌曲时，请保留该上下文。

检查编辑与过渡

在目标段落附近聆听完整返回结果，并与来源比较，再保存选定候选与实际时间/输入字段，用于下一次修订。