Basses Tuning "Up" HELP!!!!

[LilRay]

I have three basses and I'll play one a day and leave one in a stand. The next time I grab the one that has sat it will be tuned sharp (on its own).

I'm sure the necks have moved, but which direction would make them tune sharp? Never had em tune "up" before.

Whatcha think?

God Bless, Ray

[Benjamin Strange]

That's pretty odd. How far sharp are we talking? My first thought is not that the neck is moving, but that the strings are binding in the nut: you tune it up, but the string is caught a bit, and slowly creeps up after you've set it down and left it alone for a few days.

[62bass]

It's temperature related. When the bass cools down a bit it goes sharp. Nothing to worry about unless it's severe.

[PaleMelanesian]

My main bass shifts up or down depending on where it's sitting. When it's at my gig location, it shifts 1/4 step sharp. Then, when I take it home, it settles back down by 1/4 step. I blame temperature / humidity at the two locations.

[LilRay]

Guess I need to get a humidifier/dehumidifier. What's the optimum humidity for instruments?

God Bless, Ray

[standupright]

Originally Posted by LilRay

Guess I need to get a humidifier/dehumidifier. What's the optimum humidity for instruments?

God Bless, Ray

i've read 45% - 55%

it's extremely dry here in phx, but the humidity is pretty constant. much much less that 45%. my instruments hardly ever go out of tune. while i'm sure the optimum range is important, i would image that the constant would be just as if not more important.

YMMV

[Zooberwerx]

Tuning goes whacko as soon as you lay hands upon the strings....its a thermal thing! Oh, and there's nothing worse than a venue manager who plays with the thermostat all evening long. This does not apply to outdoor gigs.

Riis