JavaScript: Manipulating Complex Objects

var myMusic = [
  {
    "artist": "Billy Joel",
    "title": "Piano Man",
    "release_year": 1973,
    "formats": [
      "CD",
      "8T",
      "LP"
    ],
    "gold": true
  },	  // new record starts with a comma
  {
    "artist" : "Bitty Koel",
    "title" : "Picasso Man",
    "release_year" : 2020,
    "formats" : [
      "CD",
      "8T",
      "LP"
    ],
    "gold" : true
  }

];