{
  "status": "success",
  "overall": 7.82,
  "grade": "A",
  "needs_review": false,
  "showcase_candidate": false,
  "flags": [],
  "dimensions": {
    "production": {
      "score": 8.0,
      "issues": [
        "Peak at 0.4 dBFS, likely clipping",
        "High frequency presence low (1.9%), mix may sound dull"
      ],
      "metrics": {
        "lufs": -10.0,
        "crest": 12.100000381469727,
        "peak": 0.4000000059604645,
        "width": 13.600000381469727,
        "low_pct": 63.599998474121094,
        "mid_pct": 34.400001525878906,
        "high_pct": 1.899999976158142,
        "genre": "pop",
        "freq_deviation": 7.0
      }
    },
    "lyrics_fit": {
      "score": 8.0,
      "issues": [
        "Lyrics too dense (15.4 chars/sec), may not fit timing",
        "Almost no repetition, unusual for song lyrics"
      ],
      "density": 15.37,
      "rhyme_ratio": 0.309,
      "repetition_ratio": 0.031,
      "line_count": 64,
      "has_verse": true,
      "has_chorus": true
    },
    "originality": {
      "score": 8.86,
      "similarity_pct": 11.4,
      "issues": []
    },
    "melody_proxy": {
      "score": 4.93,
      "factors": {
        "key_confidence": 0.9713,
        "beat_regularity": 0.7527,
        "bpm_confidence": 0.0,
        "chromagram_focus": 0.0299
      },
      "issues": [
        "Unclear tempo (BPM confidence 0.00)",
        "Chromagram very spread, weak tonal focus"
      ]
    },
    "vocal_presence": {
      "score": 8.0,
      "mid_pct": 34.4,
      "centroid": 510.0,
      "issues": [
        "Mid-range energy moderate (34.4%), vocals may not stand out",
        "Spectral centroid low (510Hz), mix is bass-heavy"
      ]
    },
    "aesthetic": {
      "score": 8.6,
      "sub_scores": {
        "musicality": 8.5,
        "vocal_quality": 8.5,
        "arrangement": 9.0,
        "emotional_impact": 8.5
      },
      "summary": "A highly atmospheric and well-produced track with a sophisticated, rubato vocal delivery that perfectly complements the ambient, textured instrumentation.",
      "issues": [],
      "model": "gemini-3.1-flash-lite-preview",
      "songs_scored": 2,
      "per_song": [
        {
          "score": 8.47,
          "sub_scores": {
            "musicality": 8.5,
            "vocal_quality": 8.0,
            "arrangement": 9.0,
            "emotional_impact": 8.5
          },
          "summary": "A sophisticated and atmospheric track with a well-executed ambient pop aesthetic; the rubato vocal delivery and textural instrumentation create a genuinely immersive, melancholic mood.",
          "issues": [],
          "model": "gemini-3.1-flash-lite-preview",
          "file": "suno_mixed_0.mp3",
          "index": 0
        },
        {
          "score": 8.72,
          "sub_scores": {
            "musicality": 8.5,
            "vocal_quality": 9.0,
            "arrangement": 9.0,
            "emotional_impact": 8.5
          },
          "summary": "A highly atmospheric and well-produced track with a sophisticated, rubato vocal delivery that perfectly complements the ambient, textured instrumentation.",
          "issues": [],
          "model": "gemini-3.1-flash-lite-preview",
          "file": "suno_mixed_1.mp3",
          "index": 1
        }
      ]
    }
  },
  "elapsed_s": 0.011
}