Help with "bad" tuning...need help

[Sarah Fox]

Hi Terry,

> another way to look at it is "cycles". Each cycle is comprised of 4 cents. 
> So, 100 cents flat, or 1/2 step flat is 25 cycles flat, or A 415.

Actually, 415 Hz would be a G#, which would be 100 cents flat (if it were 
supposed to be an A).

The correspondence between cents and Hertz (cycles per second) isn't 
constant.  For higher pitches, each step, half step, and cent increases in 
number of Hertz.

(Piano Tuning 101.  Reblitz.)

Peace,
Sarah