[Dixielandjazz] None > Mathematical Smoke and Mirrors

[BudTuba at aol.com]

In a message dated 3/23/03 8:55:13 PM Eastern Standard Time, 
jazzboard at hotmail.com writes:

> I know musicians are usually a tad better at math than the average man in 
> the streets, I mean having to figure out I, IV, and V chords and all that 
> stuff.
> 
> Anyway, here is something and if you can figure it out let me know!!!
> 
> 
> 

Neat little mathematical trick.  Think that any two digit number between 10 
and 99 can be expressed as 10X + Y. where X  is a digit ranging from 1 to 9 
and Y is a digit ranging from 0 to 9.  Therefore, the number 37 would be 10 
times 3 plus 7.  This means in this case the X is equal to 3 and the Y is 
equal to 7.  The sum of the digits is 3 + 7 = 10.and the final number to 
lookup in the table is 37-10 = 27.  Well, the symbol for 27 is C+ (think of 
my + sign as the star in the chart).  Doing the math using algebra the 
equation for the final number would be 10X +Y -(X + Y) .  this would be equal 
to 10X + Y - X - Y when I remove the parentheses.  and by adding up the X's 
and Y's, this becomes equal to 9X since the + Y and - Y cancel out.  
Therefore, the answer always becomes equal to 9 times an integer between 1 
and 9.  Notice that every 9X number in the chart has the same C+ symbol.  
Therefore, no matter what two digit number you pick you will always be 
directed to the same symbol in the chart. 

Could be a good way to call tunes in a band that only knows one tune.

Bud Taylor
Smugtown Stompers
Rochester, NY
Traditional Jazz since 1958
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