I recently found this article:
Real-Time 432 Auto-Pitching Video Player

And I wanted to chime in and share my findings - I think they're on to something!  I used VLC on my Mac Mini to change the frequency to 432Hz, then opened the same song in iTunes using the default frequency. 

The VLC / 432Hz configuration sounded much less harsh!  Amazing. 

Click here for instructions for configuring your VLC software to play at 432Hz.

It turns out that in 1936, the powers that be decided to re-tune "A" to be 440hz instead of 432hz.  So since then, we've been listening to music that irritates us at a cellular level.  It causes stress an disease:  

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  • “The refusal of King George to allow the colonies to operate an honest money system, which freed the ordinary man from clutches of the money manipulators was probably the prime cause of the revolution.”

    - Benjamin Franklin