{
  "title": "D major",
  "formula": "1 2 3 4 5 6 7",
  "notes": [
    "D",
    "E",
    "F#",
    "G",
    "A",
    "B",
    "C#"
  ],
  "variants": [
    {
      "label": "Middle register",
      "midi": [
        50,
        52,
        54,
        55,
        57,
        59,
        61,
        62
      ],
      "arpeggio": true
    },
    {
      "label": "Upper register",
      "midi": [
        62,
        64,
        66,
        67,
        69,
        71,
        73,
        74
      ],
      "arpeggio": true
    }
  ],
  "license": "CC-BY-4.0",
  "attribution": "Artistry Piano",
  "source": "https://artistryalliance.net/scales/d-major/"
}