"solfa" meaning in Spanish

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": ":af",
        "3": "sol",
        "4": "fa",
        "text": "+",
        "tree": "1"
      },
      "expansion": "From sol + fa.",
      "name": "ety"
    }
  ],
  "etymology_text": "From sol + fa.",
  "forms": [
    {
      "form": "solfas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "solfa m (plural solfas)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "sol‧fa"
  ],
  "hyphenations": [
    {
      "parts": [
        "sol‧fa"
      ]
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages using etymon with no ID",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries referencing missing etymons",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with etymology texts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with etymon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish nouns with irregular gender",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "sol-fa"
      ],
      "id": "en-solfa-es-noun-YptzeS9S",
      "links": [
        [
          "sol-fa",
          "sol-fa"
        ]
      ],
      "related": [
        {
          "word": "poner en solfa"
        },
        {
          "word": "solfear"
        }
      ],
      "synonyms": [
        {
          "word": "solfeo"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsolfa/"
    },
    {
      "ipa": "[ˈsol.fa]"
    },
    {
      "rhymes": "-olfa"
    }
  ],
  "word": "solfa"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": ":af",
        "3": "sol",
        "4": "fa",
        "text": "+",
        "tree": "1"
      },
      "expansion": "From sol + fa.",
      "name": "ety"
    }
  ],
  "etymology_text": "From sol + fa.",
  "forms": [
    {
      "form": "solfas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "solfa m (plural solfas)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "sol‧fa"
  ],
  "hyphenations": [
    {
      "parts": [
        "sol‧fa"
      ]
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "related": [
    {
      "word": "poner en solfa"
    },
    {
      "word": "solfear"
    }
  ],
  "senses": [
    {
      "categories": [
        "Pages using etymon with no ID",
        "Pages with 3 entries",
        "Pages with entries",
        "Pages with etymon",
        "Rhymes:Spanish/olfa",
        "Rhymes:Spanish/olfa/2 syllables",
        "Spanish 2-syllable words",
        "Spanish compound terms",
        "Spanish countable nouns",
        "Spanish entries referencing missing etymons",
        "Spanish entries with etymology texts",
        "Spanish entries with etymon",
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish masculine nouns",
        "Spanish nouns",
        "Spanish nouns with irregular gender",
        "Spanish terms with IPA pronunciation"
      ],
      "glosses": [
        "sol-fa"
      ],
      "links": [
        [
          "sol-fa",
          "sol-fa"
        ]
      ],
      "synonyms": [
        {
          "word": "solfeo"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsolfa/"
    },
    {
      "ipa": "[ˈsol.fa]"
    },
    {
      "rhymes": "-olfa"
    }
  ],
  "word": "solfa"
}