The recipe for Heartsinger's Reward requires a "Fanciful Tuff Ring". Shift-click to the recipe redirects to Fanciful circlet. There is no available recipe to craft the ring.

Mod version
spectrum-1.5.7-1.18.2-magic

Obs: I am playing All of Fabric 5

After crafting the refined azurite, the recipe did appear.

Fixed in next version. Thank you!