Press the button, strum & the battery powered robot guitar tuner does the rest.
http://the-gadgeteer.com/2013/04/12/gibson-min-etune-perfect-pitch-at-the-touch-of-a-button/ / new Gibson Min-ETune guitars guitar back headstock battery-powered battery powered robot tuner accurately tune six strings simultaneously standard tuning seconds press button strum you’re done choose 12 popular alternate tunings six 6 program yourself 11 eleven classic guitars Min-ETune SG Les Paul models prices price range from $1499 up to $3199 musicians lazy built in /