Step 2 Music & Analysis Skill

Complete all Step 2 artifacts for one project.

Required artifacts in projects/<project-id>/music/:

• •One .mp3 file
• •suno_prompt.txt
• •song_info.txt
• •analysis.json

Execute

1. •Resolve project id (default default).
2. •Ensure one MP3 exists in projects/<project-id>/music/.
3. •Load and apply references/suno-and-analysis-prompt-best-practices.md.
4. •Write suno_prompt.txt with final generation prompt text (music-only language).
5. •Write song_info.txt with duration/BPM/structure notes.
6. •If using another AI to generate analysis content, require strict JSON-only output matching required keys.
7. •Write analysis.json with required fields:
   • •version
   • •duration
   • •bpm
   • •sections

Prompt quality checks

Before final save:

• •Suno prompt includes genre/mood/tempo/instrumentation/structure details.
• •Suno prompt excludes visual/camera language.
• •Analysis prompt (if used) requests JSON-only output and required keys.

Completeness check

Run:

project=default
ls -1 "projects/$project/music"
node -e 'const fs=require("fs");const p="projects/default/music/analysis.json";const j=JSON.parse(fs.readFileSync(p,"utf8"));const req=["version","duration","bpm","sections"];const miss=req.filter(k=>!(k in j));if(miss.length){console.error("Missing:",miss.join(","));process.exit(1)}console.log("analysis.json schema keys ok")'

Mark Step 2 complete only when all four artifacts are present and non-empty.