typedef struct {
    char id[30];
    char name[200];
    char key[15];
    char artists[40][100];
    int num_artists;
    char release_date[12];
    double acousticness;
    double danceability;
    double energy;
    int duration_ms;
    double instrumentalness;
    double valence;
    int popularity;
    float tempo;
    double liveness;
    double loudness;
    double speechiness;
    int year;
} Musica;