docs: def vagalume(song):
      """
      Returns the lyrics found in vagalume.com.br for the specified mp3 file or
      an empty string if not found.
      """
      translate = {
          '@': 'a',
          URLESCAPE: '',
          ' ': '-'
      }
      artist = song.artist.lower()
      artist = normalize(artist, translate)
      artist = re.sub(r'\-{2,}', '-', artist)
      title = song.title.lower()
      title = normalize(title, translate)
      title = re.sub(r'\-{2,}', '-', title)
  
      url = 'https://www.vagalume.com.br/{}/{}.html'.format(artist, title)
      soup = get_url(url)
      body = soup.select('div#lyrics')
      if body == []:
          return ''
  
      content = body[0]
      for br in content.find_all('br'):
          br.replace_with('\n')
  
      return content.get_text().strip()