tracks.json

{
    "track_id1": {
        "title": "title1",
        "artist": "artist1",
        "length": 211,
        "year": 2019,
        "genres": [
            "Genre1",
            "Genre2"
        ],
        "id": "track_id1"
    },
    "track_id2": {
        "title": "Baby One More Time",
        "artist": "Britney Spears",
        "length": 237,
        "year": 1998,
        "genres": [
            "dance pop",
            "teen pop"
        ],
        "id": "track_id2"
    },
    "track_id3": {
        "title": "It's my life",
        "artist": "Bon Jovi",
        "length": 224,
        "year": 2000,
        "genres": [
            "pop rock",
            "arena rock"
        ],
        "id": "track_id3"
    },
    "track_id4": {
        "title": "Suerte",
        "artist": "Shakira",
        "length": 196,
        "year": 2001,
        "genres": [
            "worldbeat",
            "latin"
        ],
        "id": "track_id4"
    }
}