Don't know what song that is, but the string sounds a lot like the Guzheng from EWQL Silk. Silk has a bunch of excellent Chinese, Indian, and Persian instruments, including many plucked and bowed strings, winds, and brass. It's not cheap (currently on sale for $197.50) and it requires an iLok, but I've owned it since day one and I still think it's the best collection of Eastern instruments around.