Hibiki is really a blend of about ten malts and grains that includes Yamazaki, Hakushu, and Chita all aged in five types of cask. The non-age statement Japanese Harmony was introduced in 2015, following the discontinuation with the twelve yr aged as being the entry stage into the Main selection. https://whiskeyeditions.com/product/hibiki-japanese-harmony-ryusui-hyakka-limited-edition-2021/