{
  "status": "success",
  "overall": 8.38,
  "grade": "A",
  "needs_review": false,
  "showcase_candidate": true,
  "flags": [],
  "dimensions": {
    "production": {
      "score": 8.5,
      "issues": [
        "Peak at 0.2 dBFS, likely clipping"
      ],
      "metrics": {
        "lufs": -9.8,
        "crest": 12.300000190734863,
        "peak": 0.20000000298023224,
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        "low_pct": 57.79999923706055,
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        "high_pct": 6.800000190734863,
        "genre": "hip_hop",
        "freq_deviation": 3.5
      }
    },
    "lyrics_fit": {
      "score": 8.5,
      "issues": [
        "Lyrics too dense (9.2 chars/sec), may not fit timing"
      ],
      "density": 9.2,
      "rhyme_ratio": 0.43,
      "repetition_ratio": 0.119,
      "line_count": 59,
      "has_verse": true,
      "has_chorus": true
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    "originality": {
      "score": 9.99,
      "similarity_pct": 0.1,
      "issues": []
    },
    "melody_proxy": {
      "score": 7.51,
      "factors": {
        "key_confidence": 0.8649,
        "beat_regularity": 0.794,
        "bpm_confidence": 1.0,
        "chromagram_focus": 0.0132
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      "issues": [
        "Chromagram very spread, weak tonal focus"
      ]
    },
    "vocal_presence": {
      "score": 8.5,
      "mid_pct": 35.4,
      "centroid": 985.0,
      "issues": [
        "Mid-range energy moderate (35.4%), vocals may not stand out"
      ]
    },
    "aesthetic": {
      "score": 8.38,
      "sub_scores": {
        "musicality": 8.5,
        "vocal_quality": 8.0,
        "arrangement": 8.5,
        "emotional_impact": 8.5
      },
      "summary": "A sophisticated blend of Mandopop and Blues Rock with a moody, atmospheric arrangement. The vocal performance is nuanced and fits the melancholic theme perfectly.",
      "issues": [],
      "model": "gemini-3.1-flash-lite-preview",
      "songs_scored": 2,
      "per_song": [
        {
          "score": 8.38,
          "sub_scores": {
            "musicality": 8.5,
            "vocal_quality": 8.0,
            "arrangement": 8.5,
            "emotional_impact": 8.5
          },
          "summary": "A sophisticated blend of Mandopop and Blues Rock with a moody, atmospheric arrangement. The vocal performance is nuanced and fits the melancholic theme perfectly.",
          "issues": [],
          "model": "gemini-3.1-flash-lite-preview",
          "file": "suno_mixed_0.mp3",
          "index": 0
        },
        {
          "score": 8.38,
          "sub_scores": {
            "musicality": 8.5,
            "vocal_quality": 8.0,
            "arrangement": 8.5,
            "emotional_impact": 8.5
          },
          "summary": "A sophisticated blend of Mandopop and Blues Rock with a moody, atmospheric arrangement that perfectly supports the melancholic vocal delivery.",
          "issues": [],
          "model": "gemini-3.1-flash-lite-preview",
          "file": "suno_mixed_1.mp3",
          "index": 1
        }
      ]
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}