Sit down at a piano, place your right hand on a high D octave, then hammer it about every second.
You will find the noise familiar, although I cannot promise that familiarity will breed enjoyment.
This is the noise that heavy machinery makes when it backs up (PDF).
As far as I can tell all heavy equipment does this and it does so using the same sanity besieging tone.
There is a construction crew in my vicinity and it is interesting to me that the noise of pavement being peeled away cannot compete with this tonE, toNE, tONE, TONE!
Why D/D-minor, a key used to dramatic effect in horror movies (i.e. Phantom of the Opera - Bach's toccata and fugue in D-minor)?
Why not the sound of birds chirping, or that sedate squeak cars make to confirm it has been locked? Why not a sassy temptress of a voice telling us equipment is in reverse?
Why so loud that I can hear it far away?
Doesn't a thing that loud overpower the shouts likely to emanate from anyone in the danger zone?
Doesn't a thing that loud require site workers to wear ear-plugs?
Do site workers wearing ear-plugs necessitate louder warning beeps?
Are we in the midst of a cacophony cold-war?
Perhaps we need a war on backing up?
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