Brother Doug Rhodes, our member in Victoria, B.C., wrote to me that
a sterling example of Just Tuning is the sound of the air horns on a
train locomotive.

> It's a minor triad in Canada --  speeding trains have long been
> recognized in Canada as dangerous, and deserving of the ominous,
> threatening quality of a minor chord.
>
> In the USA, speeding trains are nostalgic, reminiscent of the "good
> old days," and therefore are given light-hearted, happy major chords
> for their warning horns.  ...  Fascinating, isn't it?!
>
> Doug Rhodes <drhodes@mail.islandnet.com>