Weirdest thing!

[Kevin Quick]

Anyone have any experience like this? Put new strings on e9 neck. Stretched em out as usual so they stay in tune after a pull. Something was off. Turned out to be 8th string e. Tuned open along w/ 4th string ok. As I went up the neck the 8th was flat to the 4th around the 5th fret.at 12th fret it was way flat. Couldn't figure it out. Put new string on 8th. Defective string!!?? Never had anything like that b4

[Lee Baucum]

Full moon August 7 and a full eclipse coming up on the 21st.

[Kevin Fix]

Full Moon!!!! LOL.

[Tim Russell]

Almost sounds like the string didn't have enough wraps around the peg and was slipping.

[Kevin Quick]

Could be. Also thought it might have been that the core was of inconsistent gauge?

[Alan Bidmade]

Had something similar happen years ago when I bought a Guild acoustic guitar from a London UK dealer. Sounded great in the shop - I tried it against a number of Gibson and Martin guitars and the Guild was the strongest sounding guitar available. Paid my money, took it home, put a new set of strings on and - just as described - one string was out of tune.
I took it back to the shop. He immediately took a spare string, changed it without a word and handed me the guitar back. He told me he was so confident in his guitar tech that there could only be one reason for the de-tuning.
Whenever I have a similar problem (and it is very rarely) I check the string first.

[Greg Lambert]

I have had that happen on my strat a long time ago. It was a bad string. Didnt analyze just put a new one one , problem fixed.

[Brint Hannay]

I had the exact same thing many years ago. 8th string in tune with 4th open, out when moving up the neck. Changed the string, same thing. Called the retailer I got the strings from, and he told me I wasn't the first and the manufacturer had told him they had a bad run of .030's.

[Jerry Korkki]

It happens more often than you think. I have spent more time than needed to fix a problem caused by a string. Intonation, buzzing and other problems were solved by simply replacing a new string with a another new string. Strings can be and are imperfect.

[Jerry Korkki]

I forgot to add, look for strings in an airtight, anti corrosion package. It will reduce the chances of the string being the problem. There is no cure for a poor winding, but oxidation can be prevented.

[Jerry Korkki]

Oh, one more thing, when you restring (you six stringers out there) feel along the length of the string for any humps or bumps before you put it on. If there are any, it will buzz just before that hump. You can straighten it out and be fine. The string should feel smooth running through your fingers.