Here's what I have learnt about the phonetics of loss.
They sound something like this:
(which is to say, silence)
it's a note I've never heard anyone sing
and it's note that someday I will find,
come morning, sleep has left behind.
This sound, like those in an old lullaby
until found, I can know only as goodbye,
as milkteeth underneath a cotton pillow,
as the sounds that I hear now:
(the black bedtime echo).