```
     link              titulo             ritmo               ano           
 Length:10056       Length:10056       Length:10056       Length:10056      
 Class :character   Class :character   Class :character   Class :character  
 Mode  :character   Mode  :character   Mode  :character   Mode  :character  
    musica           compositor           letra          
 Length:10056       Length:10056       Length:10056      
 Class :character   Class :character   Class :character  
 Mode  :character   Mode  :character   Mode  :character  
```