{
  "status": "success",
  "overall": 8.64,
  "grade": "S",
  "needs_review": false,
  "showcase_candidate": true,
  "flags": [],
  "dimensions": {
    "production": {
      "score": 8.5,
      "issues": [
        "Peak at 0.3 dBFS, likely clipping"
      ],
      "metrics": {
        "lufs": -9.9,
        "crest": 12.0,
        "peak": 0.30000001192092896,
        "width": 5.300000190734863,
        "low_pct": 55.20000076293945,
        "mid_pct": 41.599998474121094,
        "high_pct": 3.200000047683716,
        "genre": "pop",
        "freq_deviation": 2.3
      }
    },
    "lyrics_fit": {
      "score": 8.5,
      "issues": [
        "Lyrics too dense (13.0 chars/sec), may not fit timing"
      ],
      "density": 12.98,
      "rhyme_ratio": 0.309,
      "repetition_ratio": 0.187,
      "line_count": 75,
      "has_verse": true,
      "has_chorus": true
    },
    "originality": {
      "score": 9.13,
      "similarity_pct": 8.7,
      "issues": []
    },
    "melody_proxy": {
      "score": 7.55,
      "factors": {
        "key_confidence": 0.9045,
        "beat_regularity": 0.8713,
        "bpm_confidence": 0.8607,
        "chromagram_focus": 0.0204
      },
      "issues": [
        "Chromagram very spread, weak tonal focus"
      ]
    },
    "vocal_presence": {
      "score": 9.5,
      "mid_pct": 41.6,
      "centroid": 518.0,
      "issues": [
        "Spectral centroid low (518Hz), mix is bass-heavy"
      ]
    },
    "aesthetic": {
      "score": 8.75,
      "sub_scores": {
        "musicality": 8.5,
        "vocal_quality": 9.0,
        "arrangement": 8.5,
        "emotional_impact": 9.0
      },
      "summary": "An intimate, beautifully produced alternative pop ballad with a raw, authentic vocal performance that perfectly captures the melancholic atmosphere.",
      "issues": [],
      "model": "gemini-3.1-flash-lite-preview",
      "songs_scored": 2,
      "per_song": [
        {
          "score": 8.75,
          "sub_scores": {
            "musicality": 8.5,
            "vocal_quality": 9.0,
            "arrangement": 8.5,
            "emotional_impact": 9.0
          },
          "summary": "An intimate, beautifully produced alternative pop ballad with a raw, authentic vocal performance that perfectly captures the melancholic atmosphere.",
          "issues": [],
          "model": "gemini-3.1-flash-lite-preview",
          "file": "suno_mixed_0.mp3",
          "index": 0
        },
        {
          "score": 8.75,
          "sub_scores": {
            "musicality": 8.5,
            "vocal_quality": 9.0,
            "arrangement": 8.5,
            "emotional_impact": 9.0
          },
          "summary": "A deeply intimate and atmospheric track with a raw, authentic vocal performance that perfectly complements the minimalist, well-textured acoustic arrangement.",
          "issues": [],
          "model": "gemini-3.1-flash-lite-preview",
          "file": "suno_mixed_1.mp3",
          "index": 1
        }
      ]
    }
  },
  "elapsed_s": 0.007
}