I really think that the guitarist is very skilled but i was wondering how would you describe the style of there music? and also what kinds of scales does the guitarist use?
they have a pretty broad range of influences, though if you wanna put them into a single genre, it would be either

Rock (inventive, huh?) or Punkabilly (punk rockabilly).

scale-wise, he stays with the typical rock thing, which is Minor Pentatonic scales, though he uses the normal major and minor scales pretty frequently.
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