Hibiki is actually a blend of about ten malts and grains that includes Yamazaki, Hakushu, and Chita all aged in 5 varieties of cask. The non-age statement Japanese Harmony was introduced in 2015, adhering to the discontinuation of the 12 yr old as the entry amount to the core variety. https://maximusbookmarks.com/story18774207/a-secret-weapon-for-hibiki-ryusui-hyakka-harmony