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            "number": "1",
            "event_id": "m29-e06",
            "onset_quarters": "5/2"
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        },
        {
          "measure": 29,
          "kind": "lyric_missing",
          "gold": {
            "text": "정",
            "number": "1",
            "event_id": "m29-e07",
            "onset_quarters": "3"
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        },
        {
          "measure": 29,
          "kind": "lyric_missing",
          "gold": {
            "text": "한",
            "number": "1",
            "event_id": "m29-e08",
            "onset_quarters": "7/2"
          },
          "predicted": null
        },
        {
          "measure": 29,
          "kind": "chord_aligned_differences",
          "fields": {
            "onset_quarters": {
              "gold": "1/2",
              "predicted": "0"
            }
          },
          "gold": {
            "symbol": "G",
            "onset_quarters": "1/2",
            "source_root_x_px": 176,
            "source_bbox_px": [
              165,
              1200,
              187,
              1220
            ]
          },
          "predicted": {
            "symbol": "G",
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        }
      ],
      "source_chord_onset_uncertainties": []
    },
    {
      "number": 30,
      "gold_present": true,
      "xml_present": true,
      "gold_event_count": 5,
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      "exact": {
        "gold": 5,
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        "matched": 5,
        "missing": 0,
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        "precision": 1.0,
        "recall": 1.0,
        "f1": 1.0
      },
      "order_alignment_differences": [],
      "attribute_label_errors": [],
      "exact_missing_events": [],
      "exact_extra_events": [],
      "xml_forward_gaps_not_rests": [],
      "xml_time_extent_quarters": "4",
      "text_label_errors": [
        {
          "measure": 30,
          "kind": "lyric_missing",
          "gold": {
            "text": "주",
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            "event_id": "m30-e02",
            "onset_quarters": "1/2"
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        },
        {
          "measure": 30,
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          "gold": {
            "text": "님",
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            "event_id": "m30-e03",
            "onset_quarters": "1"
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        },
        {
          "measure": 30,
          "kind": "lyric_missing",
          "gold": {
            "text": "모",
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            "onset_quarters": "3/2"
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        },
        {
          "measure": 30,
          "kind": "lyric_missing",
          "gold": {
            "text": "습",
            "number": "1",
            "event_id": "m30-e05",
            "onset_quarters": "2"
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      ],
      "source_chord_onset_uncertainties": []
    },
    {
      "number": 31,
      "gold_present": true,
      "xml_present": true,
      "gold_event_count": 8,
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      "exact": {
        "gold": 8,
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        "matched": 8,
        "missing": 0,
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        "recall": 1.0,
        "f1": 1.0
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      "order_alignment_differences": [],
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      "exact_missing_events": [],
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      "text_label_errors": [
        {
          "measure": 31,
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          "gold": {
            "text": "가",
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        },
        {
          "measure": 31,
          "kind": "lyric_missing",
          "gold": {
            "text": "만",
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            "event_id": "m31-e03",
            "onset_quarters": "1"
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        },
        {
          "measure": 31,
          "kind": "lyric_missing",
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            "text": "히",
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            "event_id": "m31-e04",
            "onset_quarters": "3/2"
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        },
        {
          "measure": 31,
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            "text": "안",
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            "onset_quarters": "2"
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        {
          "measure": 31,
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          "gold": {
            "text": "아",
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            "onset_quarters": "5/2"
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          "predicted": null
        },
        {
          "measure": 31,
          "kind": "lyric_missing",
          "gold": {
            "text": "봅",
            "number": "1",
            "event_id": "m31-e07",
            "onset_quarters": "3"
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        },
        {
          "measure": 31,
          "kind": "lyric_missing",
          "gold": {
            "text": "니",
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            "event_id": "m31-e08",
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        {
          "measure": 31,
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          "fields": {
            "symbol": {
              "gold": "A7",
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            },
            "onset_quarters": {
              "gold": "1/2",
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          },
          "gold": {
            "symbol": "A7",
            "onset_quarters": "1/2",
            "source_root_x_px": 599,
            "source_bbox_px": [
              591,
              1205,
              614,
              1225
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          },
          "predicted": {
            "symbol": "A",
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        }
      ],
      "source_chord_onset_uncertainties": []
    },
    {
      "number": 32,
      "gold_present": true,
      "xml_present": true,
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      "exact": {
        "gold": 2,
        "predicted": 2,
        "matched": 2,
        "missing": 0,
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        "precision": 1.0,
        "recall": 1.0,
        "f1": 1.0
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      "order_alignment_differences": [],
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      "exact_extra_events": [],
      "xml_forward_gaps_not_rests": [],
      "xml_time_extent_quarters": "4",
      "text_label_errors": [
        {
          "measure": 32,
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          "gold": {
            "text": "다",
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            "onset_quarters": "0"
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      ],
      "source_chord_onset_uncertainties": []
    }
  ],
  "diagnostic_field_error_counts": {
    "missing_event": 12,
    "onset_quarters": 67,
    "pitch": 7,
    "attribute_label_errors": 1,
    "duration_quarters": 3,
    "written_type": 3,
    "explicit_accidental_label": 2,
    "extra_event": 1,
    "kind": 1
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  "xml_totals": {
    "notes": 149,
    "rests": 19,
    "forward_gaps": 10
  },
  "text_comparison": {
    "summary": "Lyric and chord strings use NFC normalization with whitespace removed. All measures and every observed label are included in order comparison. Lyric exact-onset metrics use locked source note anchors, validated against current note IDs/onsets/durations. 0 chord onset ambiguities remain source uncertainty and are never forced to zero.",
    "metrics": {
      "lyrics_order_tokens": {
        "gold": 147,
        "predicted": 29,
        "ordered_matches": 18,
        "precision": 0.6206896551724138,
        "recall": 0.12244897959183673,
        "f1": 0.20454545454545456
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      "lyrics_exact_onset": {
        "gold": 147,
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        "matched": 6,
        "missing": 141,
        "extra": 23,
        "precision": 0.20689655172413793,
        "recall": 0.04081632653061224,
        "f1": 0.06818181818181818
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      "chords_order_symbols": {
        "gold": 34,
        "predicted": 41,
        "ordered_matches": 30,
        "precision": 0.7317073170731707,
        "recall": 0.8823529411764706,
        "f1": 0.8
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      "chords_exact_onset_certain_measures_only": {
        "gold": 34,
        "predicted": 41,
        "matched": 18,
        "missing": 16,
        "extra": 23,
        "precision": 0.43902439024390244,
        "recall": 0.5294117647058824,
        "f1": 0.48
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    },
    "chord_exact_onset_scored_measures": [
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8,
      9,
      10,
      11,
      12,
      13,
      14,
      15,
      16,
      17,
      18,
      19,
      20,
      21,
      22,
      23,
      24,
      25,
      26,
      27,
      28,
      29,
      30,
      31,
      32
    ],
    "all_source_certain_chord_onsets": {
      "gold": 34,
      "matched": 18,
      "recall": 0.5294117647058824,
      "note": "Recall only; full precision is not defined across measures containing unresolved source chord onsets."
    },
    "lyric_character_edit_distance": 131,
    "gold_lyric_character_count": 147,
    "lyric_character_error_rate": 0.891156462585034,
    "ambiguous_source_chord_onsets": [],
    "errors": [
      {
        "measure": 1,
        "kind": "lyric_aligned_differences",
        "fields": {
          "onset_quarters": {
            "gold": "1/2",
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          }
        },
        "gold": {
          "text": "어",
          "number": "1",
          "event_id": "m01-e02",
          "onset_quarters": "1/2"
        },
        "predicted": {
          "text": "어",
          "number": "1",
          "event_id": "m01-xml-e01",
          "onset_quarters": "0"
        }
      },
      {
        "measure": 1,
        "kind": "lyric_aligned_differences",
        "fields": {
          "onset_quarters": {
            "gold": "1",
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          }
        },
        "gold": {
          "text": "느",
          "number": "1",
          "event_id": "m01-e03",
          "onset_quarters": "1"
        },
        "predicted": {
          "text": "느",
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      },
      {
        "measure": 1,
        "kind": "lyric_aligned_differences",
        "fields": {
          "onset_quarters": {
            "gold": "3/2",
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        },
        "gold": {
          "text": "날",
          "number": "1",
          "event_id": "m01-e04",
          "onset_quarters": "3/2"
        },
        "predicted": {
          "text": "날",
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          "event_id": "m01-xml-e03",
          "onset_quarters": "1"
        }
      },
      {
        "measure": 1,
        "kind": "lyric_aligned_differences",
        "fields": {
          "onset_quarters": {
            "gold": "5/2",
            "predicted": "3/2"
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        },
        "gold": {
          "text": "다",
          "number": "1",
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        },
        "predicted": {
          "text": "다",
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          "onset_quarters": "3/2"
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      },
      {
        "measure": 1,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "가",
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          },
          "onset_quarters": {
            "gold": "3",
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        },
        "gold": {
          "text": "가",
          "number": "1",
          "event_id": "m01-e07",
          "onset_quarters": "3"
        },
        "predicted": {
          "text": "온",
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          "onset_quarters": "2"
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      },
      {
        "measure": 1,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "온",
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          },
          "onset_quarters": {
            "gold": "7/2",
            "predicted": "5/2"
          }
        },
        "gold": {
          "text": "온",
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          "event_id": "m01-e08",
          "onset_quarters": "7/2"
        },
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      },
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        "measure": 1,
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        },
        "gold": {
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          "source_root_x_px": 192,
          "source_bbox_px": [
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        },
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      },
      {
        "measure": 1,
        "kind": "chord_extra",
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        "predicted": {
          "symbol": "Em",
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      },
      {
        "measure": 2,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "주",
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        },
        "gold": {
          "text": "주",
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          "event_id": "m02-e01",
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        "predicted": {
          "text": "이",
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      },
      {
        "measure": 2,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "님",
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        },
        "gold": {
          "text": "님",
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          "onset_quarters": "3/2"
        },
        "predicted": {
          "text": "름",
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          "event_id": "m02-xml-e02",
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      },
      {
        "measure": 2,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "의",
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        },
        "gold": {
          "text": "의",
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          "event_id": "m02-e03",
          "onset_quarters": "2"
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        "predicted": {
          "text": "을",
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          "onset_quarters": "2"
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      },
      {
        "measure": 3,
        "kind": "lyric_missing",
        "gold": {
          "text": "이",
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          "event_id": "m03-e02",
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      {
        "measure": 3,
        "kind": "lyric_missing",
        "gold": {
          "text": "름",
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      },
      {
        "measure": 3,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "을",
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          "onset_quarters": {
            "gold": "3/2",
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        },
        "gold": {
          "text": "을",
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        "predicted": {
          "text": "릅",
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      {
        "measure": 3,
        "kind": "lyric_aligned_differences",
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            "gold": "부",
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          "onset_quarters": {
            "gold": "2",
            "predicted": "1/2"
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        },
        "gold": {
          "text": "부",
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        "predicted": {
          "text": "스",
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      },
      {
        "measure": 3,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "를",
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          "onset_quarters": {
            "gold": "3",
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        },
        "gold": {
          "text": "를",
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          "onset_quarters": "3"
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        "predicted": {
          "text": "없",
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      },
      {
        "measure": 3,
        "kind": "lyric_aligned_differences",
        "fields": {
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            "gold": "수",
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          },
          "onset_quarters": {
            "gold": "7/2",
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        },
        "gold": {
          "text": "수",
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          "text": "어",
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      },
      {
        "measure": 3,
        "kind": "chord_extra",
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        "predicted": {
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      },
      {
        "measure": 4,
        "kind": "lyric_missing",
        "gold": {
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          "event_id": "m04-e02",
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      {
        "measure": 4,
        "kind": "lyric_missing",
        "gold": {
          "text": "었",
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      {
        "measure": 4,
        "kind": "lyric_missing",
        "gold": {
          "text": "어",
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      {
        "measure": 4,
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        "fields": {
          "onset_quarters": {
            "gold": "2",
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        },
        "gold": {
          "text": "요",
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          "onset_quarters": "2"
        },
        "predicted": {
          "text": "요",
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        }
      },
      {
        "measure": 4,
        "kind": "chord_aligned_differences",
        "fields": {
          "onset_quarters": {
            "gold": "1/2",
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        },
        "gold": {
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          "source_root_x_px": 811.0,
          "source_bbox_px": [
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            819,
            256
          ]
        },
        "predicted": {
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      },
      {
        "measure": 5,
        "kind": "lyric_aligned_differences",
        "fields": {
          "onset_quarters": {
            "gold": "2",
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        },
        "gold": {
          "text": "사",
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          "event_id": "m05-e05",
          "onset_quarters": "2"
        },
        "predicted": {
          "text": "사",
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          "event_id": "m05-xml-e05",
          "onset_quarters": "5/2"
        }
      },
      {
        "measure": 5,
        "kind": "lyric_missing",
        "gold": {
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      {
        "measure": 5,
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            "gold": "1/2",
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        },
        "gold": {
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      },
      {
        "measure": 6,
        "kind": "lyric_missing",
        "gold": {
          "text": "느",
          "number": "1",
          "event_id": "m06-e02",
          "onset_quarters": "1/2"
        },
        "predicted": null
      },
      {
        "measure": 6,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "꼈",
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          },
          "onset_quarters": {
            "gold": "1",
            "predicted": "1/2"
          }
        },
        "gold": {
          "text": "꼈",
          "number": "1",
          "event_id": "m06-e03",
          "onset_quarters": "1"
        },
        "predicted": {
          "text": "을",
          "number": "1",
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          "onset_quarters": "1/2"
        }
      },
      {
        "measure": 6,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "지",
            "predicted": "느"
          }
        },
        "gold": {
          "text": "지",
          "number": "1",
          "event_id": "m06-e04",
          "onset_quarters": "3/2"
        },
        "predicted": {
          "text": "느",
          "number": "1",
          "event_id": "m06-xml-e04",
          "onset_quarters": "3/2"
        }
      },
      {
        "measure": 7,
        "kind": "lyric_aligned_differences",
        "fields": {
          "onset_quarters": {
            "gold": "1/2",
            "predicted": "1"
          }
        },
        "gold": {
          "text": "부",
          "number": "1",
          "event_id": "m07-e02",
          "onset_quarters": "1/2"
        },
        "predicted": {
          "text": "부",
          "number": "1",
          "event_id": "m07-xml-e02",
          "onset_quarters": "1"
        }
      },
      {
        "measure": 7,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "를",
            "predicted": "름"
          },
          "onset_quarters": {
            "gold": "1",
            "predicted": "3/2"
          }
        },
        "gold": {
          "text": "를",
          "number": "1",
          "event_id": "m07-e03",
          "onset_quarters": "1"
        },
        "predicted": {
          "text": "름",
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          "event_id": "m07-xml-e03",
          "onset_quarters": "3/2"
        }
      },
      {
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        "kind": "lyric_aligned_differences",
        "fields": {
          "onset_quarters": {
            "gold": "3/2",
            "predicted": "2"
          }
        },
        "gold": {
          "text": "수",
          "number": "1",
          "event_id": "m07-e04",
          "onset_quarters": "3/2"
        },
        "predicted": {
          "text": "수",
          "number": "1",
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          "onset_quarters": "2"
        }
      },
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        "kind": "lyric_aligned_differences",
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            "predicted": "5/2"
          }
        },
        "gold": {
          "text": "없",
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          "onset_quarters": "2"
        },
        "predicted": {
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          "onset_quarters": "5/2"
        }
      },
      {
        "measure": 7,
        "kind": "lyric_aligned_differences",
        "fields": {
          "text": {
            "gold": "었",
            "predicted": "언"
          },
          "onset_quarters": {
            "gold": "5/2",
            "predicted": "3"
          }
        },
        "gold": {
          "text": "었",
          "number": "1",
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          "onset_quarters": "5/2"
        },
        "predicted": {
          "text": "언",
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          "event_id": "m07-xml-e06",
          "onset_quarters": "3"
        }
      },
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        "kind": "lyric_aligned_differences",
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            "predicted": "7/2"
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        },
        "gold": {
          "text": "어",
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          "event_id": "m07-e07",
          "onset_quarters": "3"
        },
        "predicted": {
          "text": "어",
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          "event_id": "m07-xml-e07",
          "onset_quarters": "7/2"
        }
      },
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        "measure": 9,
        "kind": "lyric_missing",
        "gold": {
          "text": "어",
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        },
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      },
      {
        "measure": 9,
        "kind": "lyric_missing",
        "gold": {
          "text": "느",
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          "onset_quarters": "1"
        },
        "predicted": null
      },
      {
        "measure": 9,
        "kind": "lyric_missing",
        "gold": {
          "text": "날",
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          "onset_quarters": "3/2"
        },
        "predicted": null
      },
      {
        "measure": 9,
        "kind": "lyric_missing",
        "gold": {
          "text": "다",
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        },
        "predicted": null
      },
      {
        "measure": 9,
        "kind": "lyric_missing",
        "gold": {
          "text": "가",
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          "onset_quarters": "3"
        },
        "predicted": null
      },
      {
        "measure": 9,
        "kind": "lyric_missing",
        "gold": {
          "text": "온",
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        },
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      },
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        "kind": "chord_aligned_differences",
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        },
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          "source_bbox_px": [
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            512,
            195,
            531
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        },
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        }
      },
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        "kind": "chord_extra",
        "gold": null,
        "predicted": {
          "symbol": "B",
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        }
      },
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        "measure": 10,
        "kind": "lyric_missing",
        "gold": {
          "text": "주",
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          "event_id": "m10-e01",
          "onset_quarters": "0"
        },
        "predicted": null
      },
      {
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        "kind": "lyric_missing",
        "gold": {
          "text": "님",
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          "event_id": "m10-e02",
          "onset_quarters": "3/2"
        },
        "predicted": null
      },
      {
        "measure": 10,
        "kind": "lyric_missing",
        "gold": {
          "text": "의",
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          "onset_quarters": "2"
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        "predicted": null
      },
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        "measure": 11,
        "kind": "lyric_missing",
        "gold": {
          "text": "모",
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          "onset_quarters": "1/2"
        },
        "predicted": null
      },
      {
        "measure": 11,
        "kind": "lyric_missing",
        "gold": {
          "text": "습",
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          "event_id": "m11-e03",
          "onset_quarters": "1"
        },
        "predicted": null
      },
      {
        "measure": 11,
        "kind": "lyric_missing",
        "gold": {
          "text": "을",
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          "onset_quarters": "3/2"
        },
        "predicted": null
      },
      {
        "measure": 11,
        "kind": "lyric_missing",
        "gold": {
          "text": "쳐",
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          "event_id": "m11-e05",
          "onset_quarters": "2"
        },
        "predicted": null
      },
      {
        "measure": 11,
        "kind": "lyric_missing",
        "gold": {
          "text": "다",
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          "event_id": "m11-e06",
          "onset_quarters": "5/2"
        },
        "predicted": null
      },
      {
        "measure": 11,
        "kind": "lyric_missing",
        "gold": {
          "text": "볼",
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          "event_id": "m11-e07",
          "onset_quarters": "3"
        },
        "predicted": null
      },
      {
        "measure": 11,
        "kind": "lyric_missing",
        "gold": {
          "text": "수",
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          "event_id": "m11-e08",
          "onset_quarters": "7/2"
        },
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      },
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        "measure": 11,
        "kind": "chord_aligned_differences",
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            "gold": "A7",
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          },
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        },
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          "source_bbox_px": [
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            611,
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        },
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        }
      },
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        "measure": 12,
        "kind": "lyric_missing",
        "gold": {
          "text": "없",
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        },
        "predicted": null
      },
      {
        "measure": 12,
        "kind": "lyric_missing",
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          "text": "었",
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        "predicted": null
      },
      {
        "measure": 12,
        "kind": "lyric_missing",
        "gold": {
          "text": "어",
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        },
        "predicted": null
      },
      {
        "measure": 12,
        "kind": "lyric_missing",
        "gold": {
          "text": "요",
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      },
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        "measure": 12,
        "kind": "chord_aligned_differences",
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        },
        "gold": {
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            515,
            824,
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        },
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        "kind": "lyric_missing",
        "gold": {
          "text": "따",
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        "predicted": null
      },
      {
        "measure": 13,
        "kind": "lyric_missing",
        "gold": {
          "text": "뜻",
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        },
        "predicted": null
      },
      {
        "measure": 13,
        "kind": "lyric_missing",
        "gold": {
          "text": "한",
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          "event_id": "m13-e04",
          "onset_quarters": "3/2"
        },
        "predicted": null
      },
      {
        "measure": 13,
        "kind": "lyric_missing",
        "gold": {
          "text": "사",
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          "event_id": "m13-e05",
          "onset_quarters": "2"
        },
        "predicted": null
      },
      {
        "measure": 13,
        "kind": "lyric_missing",
        "gold": {
          "text": "랑",
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        },
        "predicted": null
      },
      {
        "measure": 13,
        "kind": "lyric_missing",
        "gold": {
          "text": "을",
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        "predicted": null
      },
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        "measure": 13,
        "kind": "chord_extra",
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          "symbol": "G",
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      },
      {
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        "kind": "chord_aligned_differences",
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        },
        "gold": {
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          "source_bbox_px": [
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            189,
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        },
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        }
      },
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        "measure": 14,
        "kind": "lyric_missing",
        "gold": {
          "text": "느",
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        },
        "predicted": null
      },
      {
        "measure": 14,
        "kind": "lyric_missing",
        "gold": {
          "text": "꼈",
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          "event_id": "m14-e03",
          "onset_quarters": "1"
        },
        "predicted": null
      },
      {
        "measure": 14,
        "kind": "lyric_missing",
        "gold": {
          "text": "지",
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          "onset_quarters": "3/2"
        },
        "predicted": null
      },
      {
        "measure": 14,
        "kind": "lyric_missing",
        "gold": {
          "text": "만",
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          "onset_quarters": "2"
        },
        "predicted": null
      },
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        "measure": 15,
        "kind": "lyric_missing",
        "gold": {
          "text": "바",
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        },
        "predicted": null
      },
      {
        "measure": 15,
        "kind": "lyric_missing",
        "gold": {
          "text": "라",
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          "event_id": "m15-e03",
          "onset_quarters": "1"
        },
        "predicted": null
      },
      {
        "measure": 15,
        "kind": "lyric_missing",
        "gold": {
          "text": "보",
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          "event_id": "m15-e04",
          "onset_quarters": "3/2"
        },
        "predicted": null
      },
      {
        "measure": 15,
        "kind": "lyric_missing",
        "gold": {
          "text": "지",
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          "onset_quarters": "2"
        },
        "predicted": null
      },
      {
        "measure": 15,
        "kind": "lyric_missing",
        "gold": {
          "text": "못",
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        },
        "predicted": null
      },
      {
        "measure": 15,
        "kind": "lyric_missing",
        "gold": {
          "text": "했",
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        "predicted": null
      },
      {
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        "kind": "lyric_missing",
        "gold": {
          "text": "어",
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      },
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        "kind": "chord_aligned_differences",
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        "kind": "chord_extra",
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        "predicted": {
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      },
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        "kind": "lyric_missing",
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          "text": "요",
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      },
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        "kind": "chord_extra",
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        "kind": "chord_aligned_differences",
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        "kind": "lyric_missing",
        "gold": {
          "text": "비",
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      },
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        "kind": "lyric_missing",
        "gold": {
          "text": "우",
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        "predicted": null
      },
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        "kind": "lyric_missing",
        "gold": {
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      },
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        "kind": "lyric_missing",
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          "text": "못",
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        "predicted": null
      },
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        "kind": "lyric_missing",
        "gold": {
          "text": "한",
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      },
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        },
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      },
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        "kind": "lyric_missing",
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          "text": "작",
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        },
        "predicted": null
      },
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        "kind": "lyric_missing",
        "gold": {
          "text": "은",
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        "predicted": null
      },
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        "kind": "lyric_missing",
        "gold": {
          "text": "가",
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      },
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        "kind": "lyric_missing",
        "gold": {
          "text": "슴",
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      },
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        "predicted": null
      },
      {
        "measure": 19,
        "kind": "lyric_missing",
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      },
      {
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        "kind": "lyric_missing",
        "gold": {
          "text": "의",
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        },
        "predicted": null
      },
      {
        "measure": 19,
        "kind": "lyric_missing",
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          "text": "사",
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        },
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      },
      {
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        "kind": "lyric_missing",
        "gold": {
          "text": "랑",
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      },
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        "gold": {
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      },
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          "text": "너",
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