Openrouter Text2music Agent Skill

Generate atmospheric sound-design / SFX (NOT speech, NOT the front-of-blog BGM) via OpenRouter using Google Lyria 3 Pro.

2k tokens

context cost

the whole folder, loaded on every use

files

ships runnable scripts

copies elsewhere

how many repositories repackaged it

149

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/QinghongLin/data2story-skill --skill openrouter-text2music

The instruction itself

6 sections, as written by the author

openrouter-text2music

Text → audio via OpenRouter. Default model: google/lyria-3-pro-preview.

Role in Data2Story: atmospheric sound-design / SFX only — never the front BGM. Use this for a sound the story needs that has NO findable real recording: an ambient bed (tension drone, texture, room tone) or best-effort sharp foley (e.g. a glass-shatter texture). Lyria's strength is ambient/textural beds, not crisp transients, so sharp foley is best-effort. The result is an opt-in, event/section-bound, reader-controlled element. The front-of-blog BGM must be a SOURCED real track (sourced_bgm via the Scout) — never generated here.

⚠️ This is a generative audio model, not TTS. It produces 48kHz stereo audio; for narration/voiceover use a dedicated TTS tool (e.g., OpenAI tts-1, ElevenLabs).

Usage

Resolve TOOL_DIR = the directory containing this SKILL.md. Commands below use TOOL_DIR as a symbolic placeholder; replace it with the resolved, quoted path before running Bash.

export OPENROUTER_API_KEY=sk-or-v1-...

python3 TOOL_DIR/scripts/generate_music.py \
  --prompt "Low rumbling tension drone, sub-bass swell, no melody, slowly building unease" \
  --download PROJECT_DIR/assets/sfx_drone.wav

SFX prompting

Describe a TEXTURE, not a song — no genre/BPM/lead/vocals. Examples:

"low rumbling tension drone, sub-bass swell, no melody"
"sharp glass-shatter texture, brittle high transients" (foley — best-effort)
"distant wind and creaking-ice ambience, cold and hollow"

Flags

| Flag | Default | Description |

|---|---|---|

| --prompt | required | Text prompt — describe the atmospheric texture / SFX (mood, materials, motion); avoid song structure |

| --download | required | Output audio file path |

| --model | google/lyria-3-pro-preview | Alt: google/lyria-3-clip-preview (shorter clips) |

Pricing

lyria-3-pro-preview: $0.08 per call

Notes

Request uses POST /api/v1/chat/completions with modalities: ["audio","text"].
Response parsing handles several shapes: message.audio, a content part with type=audio, or a data:audio/... URL embedded in the text content.
Output format is typically WAV (48kHz stereo); the script saves whatever bytes the API returns — choose the extension to match.

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13k tokens

How to use it

Copy the folder

Take qinghonglin/openrouter-text2music from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.