Merkaba

So I've been mucking around with this acoustic guitar I'm borrowing and I don't know how to move from one note to another without screwing the sound up.

I'm starting really simple and trying to do the WS - Seven Nation Army tune.

E [ ---5-5-8-5-----------3-1--0---

As soon as I leave 5th fret for the 8th fret the sound goes either vibratey/open string/sound completely stops or a mixture of all 3, and the same goes for every other transition also. How the hell do you make a smooth transition?

And second thing

-------------
----3--------
-------------
-------------
----0--------
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^ Is there any proper way of plucking those two strings without it being insanely difficult to not hit the other strings in between? Also is there any proper way of actually doing them both at the same time cause if you pluck string A, how do you then be plucking B at the same time?

Or is there something I don't know



*would not be suprised*

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