OldPotter wrote: ↑
Wed Jul 10, 2019 7:08 pm
Draw yourself a picture.
Yes, I put a straight edge on my guitar. I can't express it any clearer than that. I just disagree.
You may be assuming that...
1. The string is solidly attached to the fretboard where fretted.
2. The vertical movement of the string is not important, and/or
3. Buzz can not occur if the string is in contact with the fret when at rest.
The string bends at an angle on the fret. When the action is higher, the angle is less and this reduces the pressure of the string on the fret and makes it more likely to buzz.