A chord shape that works well up and down the neck for tunes in E minor is:


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| O | | | |
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| | | | | |
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| | | | | |
| | O O | |
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This plays E minor on the 7th fret...

Move it around, and you'll get some useful sounds... you'll also get some nasties, too!

I suppose it's the folk equivalent of a 'power chord'...!!