This is the so-called G variant.

这个变种即所谓的G变异。

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T-Mobile USA will also soon begin selling a variant of the tablet, which it calls G-Slate.

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Note that, despite what you may have been playing in your local band, the variant of the chord is fixed and you can't vary it up: an open G chord can't be played with a barred G chord or any other different fingering.

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