Elevenlabs Music Generation

# ElevenLabs AI Music Generation — Pro Pack on RunComfy

Generate full songs and instrumental tracks from a text description — studio-quality 44.1 kHz stereo, 5 seconds to 5 minutes, with section-level structure control. ElevenLabs Music on the **RunComfy Model API**, called through the `runcomfy` CLI.

[runcomfy.com](https://www.runcomfy.com/?utm_source=skills.sh&utm_medium=skill&utm_campaign=elevenlabs-music-generation) · [ElevenLabs Music model](https://www.runcomfy.com/models/elevenlabs/elevenlabs/music-generation?utm_source=skills.sh&utm_medium=skill&utm_campaign=elevenlabs-music-generation) · [CLI docs](https://docs.runcomfy.com/cli/introduction?utm_source=skills.sh&utm_medium=skill&utm_campaign=elevenlabs-music-generation)

## Install this skill

```bash npx skills add agentspace-so/runcomfy-agent-skills --skill elevenlabs-music-generation -g ```

## Powered by the RunComfy CLI

```bash # 1. Install (one of — see runcomfy-cli skill for details) npm i -g @runcomfy/cli # global install npx -y @runcomfy/cli --version # zero-install

# 2. Sign in runcomfy login # or in CI: export RUNCOMFY_TOKEN=<token>

# 3. Generate music runcomfy run elevenlabs/elevenlabs/music-generation \ --input '{"prompt": "..."}' \ --output-dir ./out ```

CLI deep dive: [`runcomfy-cli`](https://www.skills.sh/agentspace-so/runcomfy-agent-skills/runcomfy-cli) skill.

## When to use ElevenLabs Music

ElevenLabs Music's strength is **structured songs with real vocals** — it takes a style brief plus lyrics with section markers and returns a coherent, mixed track. Pick it for:

- **Full vocal songs** — verse/chorus structure, multilingual lyrics, consistent meter - **Instrumental beds** — `force_instrumental: true` for background music, podcast intros, game loops - **Short brand assets** — jingles, stingers, theme music (5–30 s) - **Long-form tracks** — up to 5 minutes in a single call - **Commercial work** — output is commercial-friendly

If the user just wants ambient sound or a one-off SFX (thunder, footsteps), that's a sound-effects task, not music — ElevenLabs Music is for *songs and tracks*.

## Endpoint + input schema

**Model**: `elevenlabs/elevenlabs/music-generation`

| Field | Type | Required | Default | Notes | |---|---|---|---|---| | `prompt` | string | yes | — | Style description **and** lyrics with section markers. See prompting tips | | `music_length_ms` | int | no | `40000` | Output duration in ms. **5000–300000** (5 s – 5 min) | | `force_instrumental` | bool | no | `false` | `true` = instrumental only, no vocals | | `output_format` | string | no | `mp3_standard` | `mp3_standard` (default), or WAV — see the [model page](https://www.runcomfy.com/models/elevenlabs/elevenlabs/music-generation?utm_source=skills.sh&utm_medium=skill&utm_campaign=elevenlabs-music-generation) API tab for the full format list |

Output: 44.1 kHz stereo audio. The result JSON contains the generated audio URL — the CLI downloads it into `--output-dir`.

**Pricing**: ~$0.0083 per second of generated audio (30 s ≈ $0.25, 60 s ≈ $0.50, 5 min ≈ $2.49). Cost scales with `music_length_ms`, so draft short and finalize long.

## How to invoke

**Full vocal song with structure:**

```bash runcomfy run elevenlabs/elevenlabs/music-generation \ --input '{ "prompt": "Upbeat indie-pop anthem, bright electric guitars, driving drums, 120 BPM, female lead vocal. [Intro 8 bars] instrumental build. [Verse] Chalk on the palms, laces double-knotted, morning on the ridge. [Chorus] We rise, we strike, we never fade out. [Bridge] soft breakdown, just piano and voice. [Outro] full band, fade.", "music_length_ms": 60000 }' \ --output-dir ./out ```

**Instrumental background bed:**

```bash runcomfy run elevenlabs/elevenlabs/music-generation \ --input '{ "prompt": "Calm lo-fi hip-hop instrumental for a study playlist. Warm Rhodes piano, soft vinyl crackle, mellow boom-bap drums, 75 BPM. No vocals. Consistent loop-friendly groove throughout.", "music_length_ms": 90000, "force_instrumental": true }' \ --output-dir ./out ```

**Short brand jingle:**

```bash runcomfy run elevenlabs/elevenlabs/music-generation \ --input '{ "prompt": "5-second cheerful brand stinger, bright marimba and a single uplifting chord resolve, no vocals.", "music_length_ms": 5000, "force_instrumental": true }' \ --output-dir ./out ```

## Prompting tips

ElevenLabs Music reads **one `prompt` field** that carries both the style brief and the lyrics. Structure it well:

- **Lead with the style brief**: genre, mood, tempo (BPM), key instruments, vocal type. `"Upbeat indie-pop anthem, bright electric guitars, 120 BPM, female lead vocal."` - **Then the lyrics with section markers**: `[Intro]`, `[Verse]`, `[Chorus]`, `[Bridge]`, `[Outro]`. Add approximate durations or bar counts — `[Intro 8 bars]`, `[Verse 16 bars]`. - **Keep lyrical meter consistent** — even syllable c