Sound

Strange that some of the most glorious sounds in the world should have come from a man – Beethoven – who in the end could hear no sound (except, perhaps, the awful cacophony of tinnitus).

»That is exactly what I object to, Edmonia. If it did not sound harsh, I should say that I do not consider you a proper example for the young.«
This appeared to amuse her, which was the last thing he had anticipated. Her deep, thick laugh gushed out.
»Oh, they aren´t waiting for an example, « she replied.

»sound system«

tuner, amp, turntable, cdplayer, tapedeck, speakers.

or:

a well-designed (by chance or purpose) pattern of events, actions, impulses, equations, whathaveyou

This is the opposite of ill and at the same time the opposite of silence. Maybe it is also the opposite of something else, but I do not know.

The sound of opposite is
gently crashing surf, then hot sun,
So hot the sun, then there's land
And a cool can of ...

In the order of emotional content, I find sound more intense than either sight or touch. It seems to be where man has devoted so much creative effort to inspire others.

I love deadlines. I like the whooshing sound they make as they fly by. (Douglas Adams)

The sound of the loon might well be the most curious – if not the most thrilling – birdcall in nature.

Vaguely yodel-like, it is a comforting call...but it is also slightly frightening, slightly otherworldly.

The loon is the state bird of Minnesota. Its call is infinitely more interesting than the din of the other loons that Minnesota keeps in its legislature.

Some years ago, I was invited to a party in Cologne by two American girls. Most of the guests were Americans, so we talked English all the time.
I was introduced to a boy called Steve, and I said to him, »You sound rather British, Steve.« His reply was, »That's because I am rather British.«