{
  "status": "success",
  "overall": 8.11,
  "grade": "A",
  "needs_review": false,
  "showcase_candidate": true,
  "flags": [],
  "dimensions": {
    "production": {
      "score": 7.5,
      "issues": [
        "Frequency balance somewhat off for pop (avg deviation 16%)",
        "Peak at 0.0 dBFS, likely clipping"
      ],
      "metrics": {
        "lufs": -10.7,
        "crest": 12.399999618530273,
        "peak": 0.0,
        "width": 5.0,
        "low_pct": 74.0,
        "mid_pct": 20.799999237060547,
        "high_pct": 5.199999809265137,
        "genre": "pop",
        "freq_deviation": 16.1
      }
    },
    "lyrics_fit": {
      "score": 8.5,
      "issues": [
        "Lyrics too dense (22.0 chars/sec), may not fit timing"
      ],
      "density": 22.04,
      "rhyme_ratio": 0.577,
      "repetition_ratio": 0.301,
      "line_count": 93,
      "has_verse": true,
      "has_chorus": true
    },
    "originality": {
      "score": 8.76,
      "similarity_pct": 12.4,
      "issues": []
    },
    "melody_proxy": {
      "score": 7.54,
      "factors": {
        "key_confidence": 0.8176,
        "beat_regularity": 0.8413,
        "bpm_confidence": 1.0,
        "chromagram_focus": 0.0169
      },
      "issues": [
        "Chromagram very spread, weak tonal focus"
      ]
    },
    "vocal_presence": {
      "score": 6.5,
      "mid_pct": 20.8,
      "centroid": 784.0,
      "issues": [
        "Mid-range energy low (20.8%), vocals likely buried",
        "Spectral centroid low (784Hz), mix is bass-heavy"
      ]
    },
    "aesthetic": {
      "score": 8.97,
      "sub_scores": {
        "musicality": 9.0,
        "vocal_quality": 9.0,
        "arrangement": 9.5,
        "emotional_impact": 8.5
      },
      "summary": "A highly polished, professional-grade Dark Pop/R&B track with an infectious, syncopated groove and exceptional sound design that feels ready for commercial release.",
      "issues": [],
      "model": "gemini-3.1-flash-lite-preview",
      "songs_scored": 2,
      "per_song": [
        {
          "score": 8.97,
          "sub_scores": {
            "musicality": 9.0,
            "vocal_quality": 9.0,
            "arrangement": 9.5,
            "emotional_impact": 8.5
          },
          "summary": "A highly polished, professional-grade Dark Pop/R&B track with an infectious, syncopated groove and exceptional sound design that feels ready for commercial release.",
          "issues": [],
          "model": "gemini-3.1-flash-lite-preview",
          "file": "suno_mixed_0.mp3",
          "index": 0
        },
        {
          "score": 8.97,
          "sub_scores": {
            "musicality": 9.0,
            "vocal_quality": 9.0,
            "arrangement": 9.5,
            "emotional_impact": 8.5
          },
          "summary": "A highly professional, genre-blending track with a sophisticated, punchy arrangement and confident, well-executed vocal performance that feels entirely authentic.",
          "issues": [],
          "model": "gemini-3.1-flash-lite-preview",
          "file": "suno_mixed_1.mp3",
          "index": 1
        }
      ]
    }
  },
  "elapsed_s": 0.007
}