Is there a tutorial for animating vibrating strings?

[brokenjack]

I'm doing a promo video for a non profit, that teaches underpriviledged kids how to play the harp. I would really like to include some wow factor to the piece with some vibrating strings. I'm pretty new to after effects, but if someone can point me in the right direction, I can research it from there.

Thanks

 

[BEENYWEENIES]

Dan Ebberts' site has some great expressions tutorials, including vibrating strings:

http://www.motionscript.com/expressions-lab-ae65/vibrating-strings.html