> This is a page from the ElevenLabs documentation. For a complete page index, fetch https://elevenlabs.io/docs/llms.txt. For the full documentation in a single file, fetch https://elevenlabs.io/docs/llms-full.txt.

# 作曲计划

作曲计划可精细控制音乐生成。`music_v2` 或 `music_v2_5` 计划是由多个片段组成的有序列表，每个片段定义歌曲的一个部分，并拥有各自的风格、歌词和时长。快速原型设计可使用文本提示词；需要特定片段结构、精确歌词时序或复杂编曲时，请使用作曲计划。

> **Warning**
>
> 作曲计划和文本提示词不能同时使用。二选一即可。

```json
{
  "chunks": [
    {
      "text": "[Verse 1]\nWoke up today with a feeling inside\nSomething is changing I cannot hide\nThe sun on my face and the wind at my back\nI'm finally ready to get on track",
      "duration_ms": 16000,
      "positive_styles": [
        "upbeat pop",
        "female vocalist with clear tone",
        "acoustic guitar and light synths",
        "gentle and conversational vocals",
        "light drums in background",
        "polished production",
        "120 BPM",
        "C major"
      ],
      "negative_styles": ["dark", "aggressive", "slow tempo", "a cappella"],
      "context_adherence": "high"
    },
    {
      "text": "[Verse 2]\nUsed to be scared of the world outside\nBuilding up walls where I used to hide\nBut now I see clearly what I need to do\nTake that first step into something new",
      "duration_ms": 16000,
      "positive_styles": [
        "confident vocals",
        "fuller guitar strumming",
        "steady drum beat",
        "bass joins in"
      ],
      "negative_styles": ["a cappella", "sparse", "quiet"],
      "context_adherence": "high"
    },
    {
      "text": "[Pre-Chorus]\nNo more waiting for tomorrow\nThis is my time now",
      "duration_ms": 8000,
      "positive_styles": [
        "building intensity",
        "rising synth melody",
        "driving drums",
        "full band playing"
      ],
      "negative_styles": ["a cappella", "dropping out"],
      "context_adherence": "high"
    },
    {
      "text": "[Chorus]\nI'm breaking through\nNothing's gonna stop me now\nI'm breaking through\nFinally found out how",
      "duration_ms": 16000,
      "positive_styles": [
        "powerful and anthemic vocals",
        "full band at maximum energy",
        "punchy drums and bass",
        "layered synths and guitar"
      ],
      "negative_styles": ["a cappella", "minimal", "stripped back"],
      "context_adherence": "high"
    },
    {
      "text": "[Outro]",
      "duration_ms": 8000,
      "positive_styles": [
        "instrumental fade out",
        "guitar melody repeating",
        "drums softening",
        "gentle ending"
      ],
      "negative_styles": ["vocals", "abrupt ending", "building"],
      "context_adherence": "high"
    }
  ]
}
```

<elevenlabs-audio-player audio-title="流行歌曲" audio-src="https://storage.googleapis.com/eleven-public-cdn/documentation_assets/audio/example-pop-song.mp3" />

> **Note**
>
> 基于片段的作曲计划需要 `music_v2` 或 `music_v2_5`。作曲时传入 `model_id="music_v2_5"`。

## 快速入门

按照[音乐快速入门](/docs/zh/eleven-api/guides/cookbooks/music)设置 API 密钥并安装 SDK，然后使用作曲计划获得更精细的控制。

### 使用作曲计划生成音乐

```python
import os
from dotenv import load_dotenv
from elevenlabs.client import ElevenLabs

load_dotenv()
elevenlabs = ElevenLabs(api_key=os.environ.get("ELEVENLABS_API_KEY"))

composition_plan = {
    "chunks": [
        {
            "text": "[Verse]\nWalking down an empty street\nWondering who I'll meet",
            "duration_ms": 15000,
            "positive_styles": ["pop", "upbeat", "female vocals", "soft vocals", "acoustic guitar"],
            "negative_styles": ["dark", "slow"],
            "context_adherence": "high"
        },
        {
            "text": "[Chorus]\nThis is my moment\nI won't let it go",
            "duration_ms": 15000,
            "positive_styles": ["powerful vocals", "full band"],
            "negative_styles": [],
            "context_adherence": "high"
        }
    ]
}

audio = elevenlabs.music.compose(
    composition_plan=composition_plan,
    model_id="music_v2_5",
    # with_timestamps=True,  # Optional: return word-level timestamps
)

with open("output.mp3", "wb") as f:
    for chunk in audio:
        f.write(chunk)
```

```typescript
import { ElevenLabsClient } from "@elevenlabs/elevenlabs-js";
import "dotenv/config";

const elevenlabs = new ElevenLabsClient({
  apiKey: process.env.ELEVENLABS_API_KEY,
});

const compositionPlan = {
  chunks: [
    {
      text: "[Verse]\nWalking down an empty street\nWondering who I'll meet",
      durationMs: 15000,
      positiveStyles: ["pop", "upbeat", "female vocals", "soft vocals", "acoustic guitar"],
      negativeStyles: ["dark", "slow"],
      contextAdherence: "high",
    },
    {
      text: "[Chorus]\nThis is my moment\nI won't let it go",
      durationMs: 15000,
      positiveStyles: ["powerful vocals", "full band"],
      negativeStyles: [],
      contextAdherence: "high",
    },
  ],
};

const audio = await elevenlabs.music.compose({
  compositionPlan,
  modelId: "music_v2_5",
  // withTimestamps: true,  // Optional: return word-level timestamps
});
```

### 根据提示词生成计划

根据文本描述生成作曲计划，再在生成前修改：

```python
plan = elevenlabs.music.composition_plan.create(
    prompt="An upbeat pop song about summer adventures",
    music_length_ms=60000,
    model_id="music_v2_5"
)

# Modify the generated plan
plan["chunks"][0]["text"] = "[Verse 1]\nCustom lyrics here"

audio = elevenlabs.music.compose(composition_plan=plan, model_id="music_v2_5")
```

```typescript
const plan = await elevenlabs.music.compositionPlan.create({
  prompt: "An upbeat pop song about summer adventures",
  musicLengthMs: 60000,
  modelId: "music_v2_5",
});

// Modify the generated plan
plan.chunks[0].text = "[Verse 1]\nCustom lyrics here";

const audio = await elevenlabs.music.compose({ compositionPlan: plan, modelId: "music_v2_5" });
```

## 结构参考

### 片段

作曲计划是最多包含 30 个片段的有序列表。每个片段会根据其 `text` 和风格生成歌曲的一个部分。第一个片段最为重要：它的风格决定整首歌的整体氛围和流派。

| 字段                  | 类型     | 说明                                                      |
| ------------------- | ------ | ------------------------------------------------------- |
| `text`              | string | 方括号内的段落名称（`[Verse 1]`）、歌词行，以及花括号内的行内指示（`{scratching}`）。 |
| `duration_ms`       | number | 时长，单位为毫秒（3,000 - 120,000）。                              |
| `positive_styles`   | array  | 要包含的风格和指示（最多 50 项）。                                     |
| `negative_styles`   | array  | 要避免的风格和指示（最多 50 项）。默认为空。                                |
| `context_adherence` | string | `low`、`medium` 或 `high`（默认）。表示片段遵循相邻片段的程度。              |

一首歌最多可有 30 个片段。总时长必须在 3 秒至 10 分钟之间，每个片段则须在 3 至 120 秒之间。

> **Tip**
>
> 第一个片段的风格最重要，因为它决定整体氛围和流派。在方向确定前，前几个片段最好至少使用 6 - 7 种风格。可在列表中附加“great production quality”等通用风格作为默认项。

片段还可以引用已存储歌曲中的音频，以保持现有部分不变，或基于这些音频生成新音频。编辑和组合现有歌曲，请参阅[音乐局部重绘](/docs/zh/eleven-api/guides/how-to/music/inpainting)。

## 编写歌词

`text` 字段结合了段落名称、歌词和行内指示：

* 方括号内的 **段落名称**：`[Verse 1]`、`[Chorus]`、`[Bridge]`
* 以纯文本形式编写的 **歌词**，每行以换行符分隔（`\n`）
* 括号内的 **语音化声音**：`(hmmm hmmm)`、`(ooh)`、`(yeah)`
* 花括号内的 **行内指示**：`{guitar solo}`、`{scratching}`、`{instrumental break}`

简短的行内提示请使用花括号。对于应用于整个片段的更广泛特征——流派、配器或整体演唱风格——则使用 `positive_styles`。

**`错误`**

```json title="错误"
{
  "text": "[Verse]\n(soft female vocals) I've been waiting\n(instrumental break)\nfor you"
}
```

**`正确`**

```json title="正确"
{
  "text": "[Verse]\nI've been waiting\n{instrumental break}\nfor you",
  "positive_styles": ["soft female vocals"]
}
```

在修正后的示例中，整体演唱风格移至 `positive_styles`，而简短的行内提示仍保留在 `text` 中，并使用花括号而非圆括号。

## 风格建议

请使用具体的风格描述：

```json
{
  "positive_styles": [
    "warm acoustic guitar with light fingerpicking",
    "soft female vocals with intimate delivery",
    "gentle percussion with brushed snare",
    "80 BPM"
  ]
}
```

积极使用负向风格来避免不需要的声音。风格必须使用英文（歌词可以使用任何语言）。

如果在风格中包含受版权保护的内容，API 会返回 `bad_composition_plan` 错误，并提供建议的替代方案。参阅[处理受版权保护的素材](/docs/zh/eleven-api/guides/cookbooks/music#copyrighted-material)。

## 示例

### 电影感纯音乐

```json
{
  "chunks": [
    {
      "text": "[Tension Build]",
      "duration_ms": 15000,
      "positive_styles": [
        "cinematic",
        "orchestral",
        "epic",
        "low strings tremolo",
        "building intensity",
        "80 BPM",
        "D minor"
      ],
      "negative_styles": ["vocals", "lyrics", "pop", "electronic", "bright"],
      "context_adherence": "high"
    },
    {
      "text": "[Climax]",
      "duration_ms": 15000,
      "positive_styles": ["full orchestra", "brass fanfare", "triumphant"],
      "negative_styles": ["quiet", "vocals"],
      "context_adherence": "high"
    },
    {
      "text": "[Resolution]",
      "duration_ms": 10000,
      "positive_styles": ["gentle strings", "piano melody", "fading out"],
      "negative_styles": ["intense", "vocals"],
      "context_adherence": "high"
    }
  ]
}
```

<elevenlabs-audio-player audio-title="电影感纯音乐" audio-src="https://storage.googleapis.com/eleven-public-cdn/documentation_assets/audio/example-cinematic-instrumental.mp3" />

### 带旁白配音的广告

```json
{
  "chunks": [
    {
      "text": "[Intro]",
      "duration_ms": 5000,
      "positive_styles": [
        "upbeat",
        "modern pop",
        "energetic",
        "120 BPM",
        "instrumental",
        "catchy hook"
      ],
      "negative_styles": ["sad", "slow", "dark", "vocals"],
      "context_adherence": "high"
    },
    {
      "text": "[Voiceover]\nIntroducing the future of productivity\nWork smarter, not harder",
      "duration_ms": 10000,
      "positive_styles": ["spoken voiceover", "confident male voice", "background music"],
      "negative_styles": ["singing"],
      "context_adherence": "high"
    },
    {
      "text": "[Outro]",
      "duration_ms": 5000,
      "positive_styles": ["musical sting", "memorable"],
      "negative_styles": ["vocals"],
      "context_adherence": "high"
    }
  ]
}
```

<elevenlabs-audio-player audio-title="广告" audio-src="https://storage.googleapis.com/eleven-public-cdn/documentation_assets/audio/example-advertisement.mp3" />

## 后续步骤

#### [音乐快速入门](/docs/zh/eleven-api/guides/cookbooks/music)

开始使用基础音乐生成

#### [音乐局部重绘](/docs/zh/eleven-api/guides/how-to/music/inpainting)

混音、延长并拼接现有歌曲的片段

#### [API 参考文档](/docs/zh/api-reference/music/compose)

完整 API 文档

#### [提示词指南](/docs/zh/overview/capabilities/music/best-practices)

音乐提示词最佳实践