2 adverbs to describe how to sweetest

Hark, hark, the bitter'st sweetest achromatic.

There it danced and jumped over the rocks singing the merriest song one ever heard, as it saidDrink, drink ye thirsty ones your fillthe happiest sweetest music to the poor starved, thirsty souls, wasted down almost to haggard skeletons.

2 adverbs to describe how to  sweetest  - Adverbs for  sweetest