Music Generator

This skill takes a structured Composition Plan and generates a high-quality audio file using an AI music model. It's designed to be the execution engine in a music creation workflow, ensuring the final output matches the creative design specifications.

When to Use

• After a Composition Plan is created: This skill is the logical next step once you have a detailed JSON plan for the music.
• To execute music generation: When the goal is to produce the final audio file based on a prompt or design.

Avoid using this skill if:

• The Composition Plan has not been created or is incomplete.
• You only need to design the music, not generate it (use a music-design or prompt-generation skill for that).

Core Principles

• Specification-Driven: Generation parameters must strictly match the design specifications in the Composition Plan.
• Duration Precision: The output audio's duration must be validated against the target length with a tight tolerance.
• Quality First: The skill will automatically retry generation if the output quality does not meet the defined standards.

Workflow

1. Load Composition Plan: The skill starts by loading the Composition Plan JSON file.
2. Set Generation Parameters: It consults the music-generation-kb.md to configure parameters for the generation API call, including:
   • duration_ms: Total duration, precisely matching the target (e.g., video length).
   • output_format: WAV for production, MP3 for delivery.
   • instrumental: Set to true to ensure no vocals are generated.
3. Execute Generation: It calls the music generation model's API, passing the Composition Plan and configured parameters.
4. Quality Validation (QV): After generation, it performs a rigorous quality check based on music-generation-kb.md:
   • Duration Match: Is the audio length within ±0.5 seconds of the target?
   • Style Consistency: Does the music match the positive_global_styles and avoid the negative_global_styles?
   • Audio Fidelity: Is the audio free of distortion, clipping, and noise?
   • Transitions: Are the transitions between sections smooth and natural?
5. Error Handling & Retry: If the QV fails, the skill will:
   • Log the reason for failure.
   • Attempt to regenerate up to 3 times, potentially with slight adjustments to the plan.
   • Escalate for manual review if all retries fail.
6. Output Audio File: Once a generation passes QV, the skill outputs the final, validated audio file (music_file).

References

• music-generation-kb.md: This knowledge base file defines the API specifications, Composition Plan schema, and detailed quality validation standards.