docs: def genius(song):
      """
      Returns the lyrics found in genius.com for the specified mp3 file or an
      empty string if not found.
      """
      translate = {
          '@': 'at',
          '&': 'and',
          URLESCAPE: '',
          ' ': '-'
      }
      artist = song.artist.capitalize()
      artist = normalize(artist, translate)
      title = song.title.capitalize()
      title = normalize(title, translate)
  
      url = 'https://www.genius.com/{}-{}-lyrics'.format(artist, title)
      soup = get_url(url)
      for content in soup.find_all('p'):
          if content:
              text = content.get_text().strip()
              if text:
                  return text
  
      return ''