"Picardy third" meaning in English

{
  "forms": [
    {
      "form": "Picardy thirds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Picardy third (plural Picardy thirds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
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          "name": "Pages with entries",
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        },
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          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Music",
          "orig": "en:Music",
          "parents": [
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A major third in the final tonic chord of a minor-key passage."
      ],
      "id": "en-Picardy_third-en-noun-e0I4uuOl",
      "links": [
        [
          "music",
          "music"
        ],
        [
          "major third",
          "major third"
        ],
        [
          "tonic",
          "tonic"
        ],
        [
          "chord",
          "chord"
        ],
        [
          "minor-key",
          "minor key"
        ]
      ],
      "raw_glosses": [
        "(music) A major third in the final tonic chord of a minor-key passage."
      ],
      "synonyms": [
        {
          "word": "tierce de Picardie"
        }
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "final major third",
          "word": "Picardin terssi"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "final major third",
          "tags": [
            "feminine"
          ],
          "word": "tierce picarde"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "final major third",
          "tags": [
            "feminine"
          ],
          "word": "tercja pikardyjska"
        }
      ]
    }
  ],
  "word": "Picardy third"
}

{
  "forms": [
    {
      "form": "Picardy thirds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Picardy third (plural Picardy thirds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with French translations",
        "Terms with Polish translations",
        "en:Music"
      ],
      "glosses": [
        "A major third in the final tonic chord of a minor-key passage."
      ],
      "links": [
        [
          "music",
          "music"
        ],
        [
          "major third",
          "major third"
        ],
        [
          "tonic",
          "tonic"
        ],
        [
          "chord",
          "chord"
        ],
        [
          "minor-key",
          "minor key"
        ]
      ],
      "raw_glosses": [
        "(music) A major third in the final tonic chord of a minor-key passage."
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "tierce de Picardie"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "final major third",
      "word": "Picardin terssi"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "final major third",
      "tags": [
        "feminine"
      ],
      "word": "tierce picarde"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "final major third",
      "tags": [
        "feminine"
      ],
      "word": "tercja pikardyjska"
    }
  ],
  "word": "Picardy third"
}