Indicates whether the playback should loop. 

		Parameters
		----------
		value : bool
			True if playback should loop, False if not.

def loop(self, value):
		""" Indicates whether the playback should loop. 

		Parameters
		----------
		value : bool
			True if playback should loop, False if not.

		"""
		if not type(value) == bool:
			raise TypeError("can only be True or False")
		self._loop = value