OK, I get it now! And yes, the club is the basic blunt instrument weapon. I hadn't thought of guitars that way, but now that you mention it, some of them qualify better as clubs than as musical instruments.

Now to the types of guitar. The "Wandergitarre" doesn't sound familiar to me, but probably someone else here knows something about it. Possible English equivalents to "wandern" might be "travel", "rove", "take a journey", "make a trek". I'll see if I can find out more about this.

The typical Spanish nylon-string guitar is often called a classical guitar. This style usually also has two oblong slots in the neck with the string-winding pegs going through them "sideways", so that the pegs are vertical when the guitar is being played.

Typical steel-string guitars have no slots in the neck, the string-winding pegs stick out from the "topside" of the neck, so that they point away from you (towards the audience) when the guitar is played. Some of these are called western-style guitars, some are called folk-style. I believe the difference is in the width of the neck, possibly also in the number of frets.

Perhaps someone more knowledgable than I can elaborate, but I hope that helps.

And, while I think of it, what you call "drawing" the string is what I have heard called "bending" the string.