"math rock" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Musical genres",
          "orig": "en:Musical genres",
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            "Genres",
            "Music",
            "Entertainment",
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      "derived": [
        {
          "word": "mathcore"
        }
      ],
      "examples": [
        {
          "ref": "2013, Kevin Holm-Hudson, Progressive Rock Reconsidered, Routledge, →ISBN, page 257:",
          "text": "Math rock albums have been colored by many other influences, ranging from world music to avant-garde jazz.",
          "type": "quote"
        }
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      "glosses": [
        "A rhythmically complex, often guitar-based style of experimental rock music that emerged in the late 1990s."
      ],
      "id": "en-math_rock-en-noun-I8koIaYn",
      "links": [
        [
          "rhythmic",
          "rhythmic"
        ],
        [
          "complex",
          "complex"
        ],
        [
          "guitar",
          "guitar"
        ],
        [
          "experimental",
          "experimental"
        ],
        [
          "rock music",
          "rock music"
        ]
      ],
      "related": [
        {
          "word": "math metal"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
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  "word": "math rock"
}

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  "derived": [
    {
      "word": "mathcore"
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  "related": [
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      "word": "math metal"
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        }
      ],
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        "A rhythmically complex, often guitar-based style of experimental rock music that emerged in the late 1990s."
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          "rhythmic",
          "rhythmic"
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          "guitar"
        ],
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          "experimental",
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  "word": "math rock"
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