by harry » Wed Aug 14, 2013 9:47 pm
Hey Minnie,
Assuming that you have adjusted the bridge saddle for correct intonation (12 fret fretted and 12 fret harmonic both in tune - or better yet, 12 fret harmonic plucked from both sides - right and left produce the same note) '
i'd ask how old the strings are?
I've had some funny experiences with a great 70's P Bass where it simply never felt in tune.
It turned out that when you played a note it would waver in pitch after the initial attack - the attack was half a semitone sharp.
So if I tuned it as being in tune by the transient of the note, long notes sounded flat, if I tuned to the long notes, the attack was sharp.
Turns out the strings were either dodgy or old. A new set fixed the problem.
If you have a spare (new string) lying about, perhaps you might re string it, adjust the intonation and listen.
Better yet - record into Cubase if you have it and then look at the wave file with it's built in pitch correction - it actually draw lines representing the actual pitch of each note and show you how they waiver..)
Assuming the nut is not correctly aligned (relative to the frets) you can check by doing the following:
If you're really curious, find out the scale length of the bass - divide the length by 17.817 - this will give you the correct distance between the nut and 1st fret. Now take the scale length 'minus' that number and divide by 17.817 again, you will get a slightly smaller measurement that is the distance between 1st and 2nd fret.
keep doing that until you get the measurements for say 5 frets, and check them with a good ruler (start from 1cm to rule out any inconsistencies with the edge of the ruler - this happens with tape measures and their end hook stretching and therefore messing up the measurents)
good luck,
Harry