You can buy this instrument here: http://shop.nadishana.com/index.php?option=com_virtuemart&page=shop.product_details&flypage=flypage_images.tpl&product_id=99 This is an experimental instrument, the set of 7 kou xiang blades, tuned in western temperated system. It is available in our shop for the order. Tuning of the blades: E, A#, D, A, G, D4, C4