# Sets the datasource (file-path or http/rtsp URL) to use
	fun data_source(path: String): Music do
		sys.jni_env.push_local_frame(1)
		var retval = nmedia_player.data_source_path(path.to_java_string)
		sys.jni_env.pop_local_frame
		if retval == 0 then
			self.error = new Error("could not load the sound " + path)
			self.sound = new Music.priv_init(null, self, self.error)

		else
			self.sound = new Music.priv_init(null, self, null)
		end
		return self.sound.as(not null)
	end