"undernote" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "note"
      },
      "expansion": "under- + note",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + note",
  "forms": [
    {
      "form": "undernotes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "undernote (plural undernotes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Music",
          "orig": "en:Music",
          "parents": [
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "88 12",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "56 44",
          "kind": "other",
          "name": "English terms prefixed with under-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A low or subdued note, such as a drone, that forms a background to the melody."
      ],
      "id": "en-undernote-en-noun-veKcDvdG",
      "links": [
        [
          "music",
          "music"
        ],
        [
          "note",
          "note"
        ],
        [
          "drone",
          "drone"
        ]
      ],
      "raw_glosses": [
        "(music) A low or subdued note, such as a drone, that forms a background to the melody."
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    },
    {
      "glosses": [
        "An undertone."
      ],
      "id": "en-undernote-en-noun-dQlXK04h",
      "links": [
        [
          "undertone",
          "undertone"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-əʊt"
    }
  ],
  "word": "undernote"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with under-",
    "Rhymes:English/əʊt",
    "Rhymes:English/əʊt/3 syllables"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "note"
      },
      "expansion": "under- + note",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + note",
  "forms": [
    {
      "form": "undernotes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "undernote (plural undernotes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Music"
      ],
      "glosses": [
        "A low or subdued note, such as a drone, that forms a background to the melody."
      ],
      "links": [
        [
          "music",
          "music"
        ],
        [
          "note",
          "note"
        ],
        [
          "drone",
          "drone"
        ]
      ],
      "raw_glosses": [
        "(music) A low or subdued note, such as a drone, that forms a background to the melody."
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    },
    {
      "glosses": [
        "An undertone."
      ],
      "links": [
        [
          "undertone",
          "undertone"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-əʊt"
    }
  ],
  "word": "undernote"
}