curl --location --request GET 'https://api.spotify.com/audio-features/' \
--header 'Authorization;'
{
"acousticness": 0,
"analysis_url": "string",
"danceability": 0,
"duration_ms": 0,
"energy": 0,
"id": "string",
"instrumentalness": 0,
"key": 0,
"liveness": 0,
"loudness": 0,
"mode": 0,
"speechiness": 0,
"tempo": 0,
"time_signature": 0,
"track_href": "string",
"type": "string",
"uri": "string",
"valence": 0
}