code: def _result_is_lyrics(self, song_title):
          
  
          default_terms = ['track\\s?list', 'album art(work)?', 'liner notes',
                           'booklet', 'credits', 'interview', 'skit',
                           'instrumental', 'setlist']
          if self.excluded_terms:
              if self.replace_default_terms:
                  default_terms = self.excluded_terms
              else:
                  default_terms.extend(self.excluded_terms)
  
          expression = r"".join(["({})|".format(term) for term in default_terms]).strip('|')
          regex = re.compile(expression, re.IGNORECASE)
          return not regex.search(self._clean_str(song_title))
docs: Returns False if result from Genius is not actually song lyrics
              Set the `excluded_terms` and `replace_default_terms` as
              instance variables within the Genius class.