The simpler, the better.
My best success has been with a dry, soft cloth. That's all. That will 
get it off smooth shellac but doesn't always work on labels. The dye 
sometimes transfers to the paper and only the outer layer of grease 
pencil will be removed - there can be some residual marks.
I have heard recently, though, that auto body men use a little - I kid 
you not - forehead grease first and then the soft cloth. Seemingly it 
works with newly painted surfaces as well as metal that's been prepped. 
Rub your forehead with a finger and use that on the grease pencil mark 
then rub with the cloth. I'm not sure this has been tried on old old, 
dried up pencil marks, though. They use the pencils to mark for cutting, 
lining up separate parts, etc.
I don't see why a little olive oil wouldn't work instead, though. Just 
be very sparing.
Malcolm

*******

On 4/12/2013 4:30 AM, Doug Pomeroy wrote:
> I have never experimented with various cleaning
> fluids to remove grease pencil from shellac and
> lacquer discs.  Any suggestions?
>
>
> Doug Pomeroy
> Audio Restoration and Mastering Services
> 193 Baltic St (Clinton/Henry)
> Brooklyn, NY  11201-6173
> (718) 855-2650
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>