Down-striking discovery and up-striking pianist

[Robin Hufford]

Brian Lawson wrote:
> 
> Living and working in Johannesburg, South Africa at about 10,000 feet above
> sea level I find no noticiable difference in tone, but to be honest unless
> I took a piano down to the coast having recorded a sample or
> something......
> 
> Brian Lawson
> IC PTG
> 
>   What difference does this lower pressure make in the tone of a piano say
> when played at sea level and then played at 5,000 feet?  Would it make any
> difference mountain folk?
> Jim Bryant (FL)
Surely, you don't mean 10,000 feet above sea level.  This can't be
accurate.   Robin Hufford RPT