Quote Originally Posted by bcdon
What are the oscillation frequencies for the remaining notes? And where does the 25% figure come into play? Is that the ratio between notes?
Hi Don, they are, in Hz

Guitar Low E string 82.4
Guitar A string 110.0
Guitar D string 146.8
Guitar G string 196.0
Guitar B string 246.9
Guitar E string 329.6

The 25% is the percentage increase in frequency from 82.4Hz (low E) to 110Hz (A)

(110-82.4)/110 x 100 = 25.1% Increase.

As you'll see if you want to get the calculator out again, not ALL the strings vibrate 25% faster than the one above it, I think I see some 25%'s and at least one 20%. I just used the E and A strings as examples of why we need different string gauges on a guitar.