A great puzzle, ams.
I am left with a problematic Y...
"The isle is full of noises... Sounds, and sweet airs, that give delight and hurt not"
The Tempest, Act III scene 2 ll 148-9
Aah, silence denotes industry, perhaps?
Nearly time for me to buzz off. Laters peeps
(River Ant, Adam Ant, Aho's Insect Symphony)