#1
Janick Gers of Iron Maiden use a technique where he hammer on and pull off between two notes and meanwhile lets his other hand lightly touch the strings as he moves it down towards the neck - thus hitting stray overtones and creating a cool effect.

I have done the same thing for years, but I've never had a name for it.

Link to the video:

http://www.youtube.com/watch?v=L1VldU77E84&t=3m30s

Anyone know if there is a specific name for the technique? Just curious.
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Apparently once also known as PonyFan #834553.
#3
Steve Vai does it too from time to time. Of course he has a habit of using his tongue instead of his hand.
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