"イ短調" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "いたんちょう"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "日本語 音楽",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "西洋音楽における調の一つで、イ音を主音とする短調。"
      ],
      "id": "ja-イ短調-ja-noun-GQUTqO2o",
      "topics": [
        "music"
      ]
    }
  ],
  "translations": [
    {
      "lang": "英語",
      "lang_code": "en",
      "word": "A major"
    },
    {
      "lang": "フランス語",
      "lang_code": "fr",
      "word": "la mineur"
    }
  ],
  "word": "イ短調"
}

{
  "categories": [
    "日本語",
    "日本語 名詞"
  ],
  "forms": [
    {
      "form": "いたんちょう"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        "日本語 音楽"
      ],
      "glosses": [
        "西洋音楽における調の一つで、イ音を主音とする短調。"
      ],
      "topics": [
        "music"
      ]
    }
  ],
  "translations": [
    {
      "lang": "英語",
      "lang_code": "en",
      "word": "A major"
    },
    {
      "lang": "フランス語",
      "lang_code": "fr",
      "word": "la mineur"
    }
  ],
  "word": "イ短調"
}