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Double Bass Question about double bass intonation

"when I started, I felt that I had to play "farther along" the fingerboard on each successive lower string than on the higher one before to produce the same pitch, same as you.'
Only when playing in 3/4 time...


My bad -meant to use the word minute -as in size, not time ( Turns out it's a homograph-not that there is anything wrong with that) didn't look right in print
got confused ,went to spellcheck and made my uneducated guess.

Back to my original inquiry about intonation...
 
hold da kæft hvor ham paul er en plage, kun sludder ingen hjælp..

So tutti....That was what Joe Bonner was yelling at me in the studio during the recording of his awul "Impressions of Copenhagen". I hadn't a clue what it meant then...I did catch my name in there...I still haven't a clue. Could you clear this up for all of us? I just figured it was all that cheap wine he was suckin' up in the toilet.
 
Seriously though. I've picked up basses that had this problem, and I could see no ready explanation. I like the idea that the nut could be cut wrong, making one string longer than it should be, but there've got to be other causes. Arnold?
Ha - Ha - Ha! No. Be - Be - Be? Yes!
 
i think i am having the same problem as the original poster but it's a little more extreme. I will try to explain my problem clearly :D.

When all my open strings are completely in tune the notes on my G string are not in tune with the rest. i have to play about 1cm (maybe a little less) closer to the nut to play notes in tune on the g string.
An example - Using a tuner to check the tuning I will play an in tune A on the E string (5th "fret"- sorry for using Electric bass terminology). I move directly across to the A string and play an in tune D. I move directly across to the D string and play an in tune G. Everything is fine until I move directly across to the 5th "Fret" and play a C. It is significantly sharp and I have to move my finger about 1cm towards the nut to get an in tune C. The tuning is affected this way pretty consistently the length of the string. I have been putting up with it lately but I am slowly going crazy. :D

I live in the Yukon and I am thousands of kms from the nearest bass repair. These are the things that I have tried to fix the problem myself.
1) re-aligned the feet of the bridge so that the bridge is further away from the nut on the G string than the E string creating a longer string length on the G to the E - I was hoping that this would move the note closer to where it should be but it made no noticeable difference except mess up my string height. i tried this at different string heights with no success. It is still sharp. i experimented with a few different alignments and the change was minimal.

2) I changed the g string. A friend had mentioned that he had had some tuning issues in spots on a string and they were fixed just by replacing the string which might have had some weak spots. This did not work in my case. The intonation problem still exists.

I don't think it is the nut height as my action is fairly low so I'm not bending the string much when I press it down.
I am at a loss to what is causing this. i hate having to shift my hand up a bit every time I move to the G string. My tuning is bad enough as it is. ;)
Anyone have any ideas that I can try? I won't be seeing a luthier for a long time.
 
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It sure sounds as though your G string is coming off the nut at a different place than the other strings ie the string is breaking off at the back of the nut.

When you hold the G string in your fingers and move it laterally across the fingerboard does it bend at the front of the nut or further back? How about the other strings? Try holding it around the 4th position and report back.

Do you have access to a digital camera, preferably one with a Macro setting?