Skywork Music Maker

AI song and music generator — create songs with vocals, instrumentals, beats, and lyrics from a text description in any language. Generate lo-fi beats, pop s...

Skywork Music Maker (Mureka API)

Generate professional-quality music using the Mureka API at https://api.mureka.ai. This skill covers the complete music production workflow: lyrics writing → song/instrumental generation.

多语言简介 | Multilingual Overview

中文简介

Skywork Music Maker 是基于 Mureka AI API 的专业音乐创作工具。支持从自然语言描述生成歌曲、纯音乐和歌词，覆盖完整的音乐制作流程。支持中文输入，可根据中文描述自动生成英文提示词。适用于流行音乐、国风音乐、电子音乐等多种风格。主要功能包括：AI 作词、歌曲生成（含人声）、纯音乐生成、人声克隆、参考音频风格迁移。

日本語の概要

Skywork Music Maker は Mureka AI API を使用したプロフェッショナルな音楽制作ツールです。自然言語の説明から楽曲・インストゥルメンタル・歌詞を生成でき、完全な音楽制作ワークフローをカバーします。日本語入力に対応し、日本語の説明から自動的に英語プロンプトを生成します。ポップス、ロック、J-POP、アニソン風、エレクトロニカなど、多様なジャンルに対応。主な機能：AI 作詞、ボーカル付き楽曲生成、インストゥルメンタル生成、ボーカルクローン、リファレンストラックによるスタイル転写。

한국어 개요

Skywork Music Maker는 Mureka AI API를 기반으로 한 전문 음악 제작 도구입니다. 자연어 설명으로 노래, 인스트루멘탈, 가사를 생성하며 완전한 음악 제작 워크플로우를 지원합니다. 한국어 입력을 지원하며, 한국어 설명에서 자동으로 영어 프롬프트를 생성합니다. K-POP, 발라드, 힙합, 인디, 트로트 등 다양한 장르에 대응합니다. 주요 기능: AI 작사, 보컬 포함 곡 생성, 인스트루멘탈 생성, 보컬 클론, 레퍼런스 트랙 기반 스타일 전사.

Descripción en español

Skywork Music Maker es una herramienta profesional de creación musical basada en la API de Mureka AI. Permite generar canciones, instrumentales y letras a partir de descripciones en lenguaje natural, cubriendo el flujo completo de producción musical. Compatible con entrada en español: describe tu idea musical en español y el sistema generará automáticamente prompts optimizados en inglés. Soporta una amplia variedad de géneros: reggaetón, salsa, bachata, cumbia, pop latino, flamenco, bossa nova, rock en español y más. Funciones principales: composición de letras con IA, generación de canciones con vocales, producción de instrumentales, clonación de voz y transferencia de estilo mediante pistas de referencia.

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Privacy & Data Usage

• API endpoint: All API calls are made exclusively to https://api.mureka.ai (official Mureka endpoint by Skywork AI)
• Data transmitted: Lyrics text, music prompts, and uploaded audio files (reference tracks, vocal samples, melodies) are sent to Mureka servers for music generation
• No third-party sharing: No data is sent to any service beyond the official Mureka API
• Local output: Generated audio files and lyrics are saved locally to the user-specified output directory
• No local caching of credentials: The API key is read from the MUREKA_API_KEY environment variable at runtime; this skill does not store or cache credentials
• User-managed billing: Users must register their own Mureka account at https://platform.mureka.ai; all usage billing is handled directly by Mureka
• Upload consent: File uploads (reference audio, vocal samples, melodies) are initiated only when the user explicitly requests reference-based or vocal-cloning generation

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First-Time Setup

Before running any API command, check if MUREKA_API_KEY is set. If not, guide the user to get an API key at https://platform.mureka.ai/ (register → API Keys → generate key → export MUREKA_API_KEY="..."), then STOP — do not attempt any API calls until the key is configured.

Smart Prompt Conversion (CRITICAL WORKFLOW)

Default behavior: When the user doesn't specify song type, always generate a song with lyrics (use mureka.py song). Only use mureka.py instrumental when the user explicitly asks for instrumental, BGM, background music, or "no vocals".

Output defaults: Use mp3 format unless the user requests otherwise. The --output flag specifies a directory — the script creates it and saves all results inside (audio files + lyrics.txt for songs). If the user doesn't specify a location, choose a user-friendly path with a descriptive folder name based on the song theme (e.g., summer_pop_song/).

When users provide music descriptions in natural language (in any language), you MUST convert them to structured Mureka API prompts using this workflow:

Conversion Process

User Input Examples:

• "upbeat pop song, female vocals, guitar, perfect for summer"
• "sad piano ballad about lost love"
• "epic orchestral music for a fantasy game"
• "traditional Chinese music with bamboo flute and zither, misty atmosphere"
• "明るいJ-POP風の夏の曲を作って" (Japanese: bright J-POP style summer song)
• "슬픈 발라드 만들어줘, 피아노 위주로" (Korean: make a sad ballad, piano-focused)
• "做一首国风古典音乐，要有二胡和古筝" (Chinese: make a guofeng classical piece with erhu and guzheng)
• "Hazme una canción de reggaetón romántico con guitarra acústica" (Spanish: make a romantic reggaeton song with acoustic guitar)

Your Task:

1. Extract structured parameters using the extraction rules below
2. Validate the prompt meets quality standards (see Quality Checklist)
3. Present to user for confirmation before generating
4. Run the generation command with the structured prompt

Parameter Extraction Rules

When users provide natural language music descriptions, directly extract and structure the following parameters:

Required Parameters:

• genres: music genres including fusion styles (e.g., Pop, Rock, Jazz, Pop Rap Fusion, Alternative Rock, Guofeng, J-POP, K-POP, Trot, Reggaetón, Salsa, Bachata, Cumbia, Flamenco, Bossa Nova)
• moods: emotional tones (e.g., Happy, Melancholic, Energetic, Nostalgic, Bright)
• instruments: specific instruments (e.g., Piano, Guitar, Drums, Erhu, Guzheng, Synth Pads, Dizi, Shamisen, Gayageum, Cajón, Congas, Bongos, Tres, Charango)
• rhythms: rhythm characteristics (e.g., 4/4, Slow, Syncopated, Driving, Flowing)
• vocals: vocal attributes (e.g., Female, Husky, Whispered, Male, Soft, Clear) or "instrumental only"
• key: musical key if specified (e.g., C Major, A Minor, C# Major)
• bpm: beats per minute (e.g., 120) or tempo descriptor (e.g., "slow groove", "uptempo")
• description: concise summary (under 50 words) capturing mood progression, melody, harmony, timbre, texture, dynamics

Extraction Instructions:

• Translate non-English terms: Convert ALL non-English musical terms to English while preserving cultural and musical meaning
• Preserve specificity: Keep detailed information including specific styles, subgenres, and cultural context (e.g., "Chinese traditional guofeng" not just "Chinese music")
• Design dynamic arc: Include mood progression where appropriate (e.g., "sparse opening → building tension → cathartic chorus")
• Infer intelligently: Make reasonable assumptions based on genre conventions when parameters are not explicitly stated
• English output: Final prompt string MUST be entirely in English

Generate Structured Prompt: Combine all extracted parameters into a comprehensive, natural-flowing description that captures the essence of the user's vision.

Quality Checklist (Validate BEFORE Generation)

Before running the generation command, verify the prompt meets these criteria:

MUST HAVE:

• ☑ Specific genre (NOT "pop song" but "synth-pop, 2020s")
• ☑ BPM or tempo descriptor (e.g., "120 BPM" or "slow groove")
• ☑ 3-5 instruments explicitly named
• ☑ Mood/emotion descriptors (2-3 words)
• ☑ Vocal style (or "instrumental only")
• ☑ Structure tags in lyrics: [Verse], [Chorus], [Bridge], [Outro]

WATCH OUT FOR:

• Vague terms: "nice", "good", "beautiful" → replace with specific descriptors
• Contradictions: "slow" + "energetic", "sad" + "uplifting" → pick one direction
• Too short: <50 chars → add more detail
• Long lyric lines: >10 words per line → split into shorter lines
• No dynamic arc: add mood progression (e.g., "sparse → building → full")

AVOID:

• Command verbs: "create a song" → use descriptions "upbeat pop song"
• Famous artist names: "sounds like Taylor Swift" → describe qualities instead
• Unrealistic combos: melody_id cannot combine with other control options

After validation, present the generated prompt to the user for confirmation before proceeding.

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Core Workflow: Production Pipeline

1. Conceptualize → User describes in natural language → YOU convert to structured prompt
2. Validate → Check prompt quality against Quality Checklist (see above)
3. Write Lyrics → Use lyrics/generate or write manually
4. Upload References → Optional: reference track, vocal sample, melody
5. Generate → Submit song/instrumental task (async) with validated prompt
6. Evaluate → Listen to all N choices, pick best
7. Iterate → Refine prompt based on what you heard

Critical Steps:

• Step 1 is mandatory when user provides natural language input (especially non-English)
• Step 2 validation prevents 80% of common generation failures
• Step 3: Read references/prompt_guide.md for prompt crafting examples, lyrics structure rules (line length, syllable count, rhyme patterns, hook writing), and iteration best practices
• Do NOT skip conceptualization — jumping straight to generation without a clear concept is the #1 reason for generic results

Your Role as AI Assistant:

1. Convert user's natural language → structured Mureka prompt (using Smart Prompt Conversion)
2. Validate prompt quality → flag issues → suggest fixes
3. Write or generate lyrics with proper structure
4. Present prompt to user for confirmation
5. Execute generation command with validated prompt
6. Help iterate and refine based on generation results

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CLI Tool

All operations go through a single script: scripts/mureka.py

mureka.py song           Generate a song with lyrics and vocals
mureka.py instrumental   Generate an instrumental track
mureka.py lyrics         Generate or extend lyrics
mureka.py upload         Upload reference audio, vocals, melodies

Run python scripts/mureka.py --help for full usage. Note: use -n 2 (single dash) to generate multiple choices, not --n.

Common Scenarios

"I just want background music for my video"

python scripts/mureka.py instrumental \
  --prompt "ambient electronic, calm, 80 BPM, soft pads, no percussion, background music for tech product video" \
  --output ./bg_music

"I want a song but don't have lyrics"

# Step 1: Generate lyrics with proper structure
python scripts/mureka.py lyrics generate "a nostalgic summer love song, bittersweet, looking back at memories"

# Step 2: Copy/refine the output, then generate the song
python scripts/mureka.py song \
  --lyrics "[Verse]\n(paste lyrics here)\n[Chorus]\n(paste chorus here)" \
  --prompt "indie pop, warm, 110 BPM, acoustic guitar, soft drums, male vocal" \
  --output ./summer_song

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Advanced Features

Reference-Based Generation

Upload a reference track (must be exactly 30s, mp3/m4a) to guide the style:

python scripts/mureka.py upload my_reference.mp3 --purpose reference
# → File ID: 542321
python scripts/mureka.py song --lyrics "[Verse]\n..." --reference-id 542321 --output ./song

Vocal Cloning

Upload a vocal sample (15-30s, mp3/m4a) to use a specific voice:

python scripts/mureka.py upload my_voice.mp3 --purpose vocal
# → File ID: 789012
python scripts/mureka.py song --lyrics "[Verse]\n..." --vocal-id 789012 --prompt "R&B, smooth, 90 BPM" --output ./song

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Control Options & Rules

Song Generation Control Combos

Combo	prompt	reference_id	vocal_id	melody_id
Style only	✅
Reference only		✅
Voice only			✅
Melody only				✅
Style + Voice	✅		✅
Reference + Voice		✅	✅

Important:

• melody_id does NOT support any combination — use it alone
• prompt and reference_id are mutually exclusive — use one or the other

Instrumental Generation Rules

For instrumentals, prompt and instrumental_id are mutually exclusive — use one or the other.

File Upload Requirements

Purpose	Format	Duration	Notes
reference	mp3/m4a	exactly 30s	Excess trimmed
vocal	mp3/m4a	15-30s	Excess trimmed
melody	mp3/m4a/mid	5-60s	MIDI recommended
instrumental	mp3/m4a	exactly 30s	For instrumental reference

Model Selection

Always use mureka-8 — it is the latest and highest quality model.

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Error Handling

Scripts raise RuntimeError or requests.HTTPError on failure. Handle common errors:

Error	Cause	Action
401 Unauthorized	Invalid or expired API key	Ask user to verify MUREKA_API_KEY
429 Too Many Requests	Rate limit exceeded	Wait 30-60 seconds, then retry
402 / Insufficient balance	Account balance depleted	Direct user to https://platform.mureka.ai to top up
Task ended with status: failed	Generation failed (bad prompt, server error)	Check prompt against Quality Checklist, retry
Task ended with status: timeouted	Generation took too long	Retry; if persistent, simplify the prompt or try a different model
ConnectionError / Timeout	Network issue	Retry after a few seconds

General strategy: Read the error message carefully. If it's a client error (4xx), fix the input. If it's a server error (5xx) or timeout, retry once before escalating to the user.

Troubleshooting Common Issues

Problem	Solution
Task failed or timeouted	Check prompt meets quality checklist; verify lyrics have structure tags; retry the generation
Vocals sound rushed	Shorten lyric lines (≤10 words); reduce syllables per line
Listed instruments not audible	Verify each instrument named explicitly in prompt; add more specific descriptors
Prompt doesn't match output	Increase specificity (exact genre, BPM, instruments); add mood progression; generate n=3 choices
melody_id error	melody_id MUST be used alone — remove --prompt, --reference-id, --vocal-id
Invalid file_id	File IDs only valid for account that uploaded — re-upload file if from another session

For parameter help:

python scripts/mureka.py --help
python scripts/mureka.py song --help

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Environment

• API Key: MUREKA_API_KEY environment variable (required)
• Base URL: https://api.mureka.ai
• Dependencies: Python 3, requests library
• Billing: Check balance with curl -H "Authorization: Bearer $MUREKA_API_KEY" https://api.mureka.ai/v1/account/billing