code: def get_key_signature_accidentals(key='C'):
      
      accidentals = get_key_signature(key)
      res = []
  
      if accidentals < 0:
          for i in range(-accidentals):
              res.append('{0}{1}'.format(list(reversed(notes.fifths))[i], 'b'))
      elif accidentals > 0:
          for i in range(accidentals):
              res.append('{0}{1}'.format(notes.fifths[i], '#'))
      return res
docs: Return the list of accidentals present into the key signature.