"math rock" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "math rock (uncountable)",
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Musical genres",
          "orig": "en:Musical genres",
          "parents": [
            "Genres",
            "Music",
            "Entertainment",
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "mathcore"
        }
      ],
      "examples": [
        {
          "ref": "2013, Kevin Holm-Hudson, Progressive Rock Reconsidered, Routledge, page 257",
          "text": "Math rock albums have been colored by many other influences, ranging from world music to avant-garde jazz.",
          "type": "quotation"
        }
      ],
      "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"
      ]
    }
  ],
  "word": "math rock"
}

{
  "derived": [
    {
      "word": "mathcore"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "math rock (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "math metal"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English uncountable nouns",
        "en:Musical genres"
      ],
      "examples": [
        {
          "ref": "2013, Kevin Holm-Hudson, Progressive Rock Reconsidered, Routledge, page 257",
          "text": "Math rock albums have been colored by many other influences, ranging from world music to avant-garde jazz.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A rhythmically complex, often guitar-based style of experimental rock music that emerged in the late 1990s."
      ],
      "links": [
        [
          "rhythmic",
          "rhythmic"
        ],
        [
          "complex",
          "complex"
        ],
        [
          "guitar",
          "guitar"
        ],
        [
          "experimental",
          "experimental"
        ],
        [
          "rock music",
          "rock music"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "math rock"
}