Respuesta :

Eddie Van Halen uses many techniques, one of which, he does is "double-fretting". Another is "speed-picking". 

Answer:tapping,trempicking,whammy stuff,harmonics,tapp harmonics,pinch harmonics, alt chords(D-add9), pick scrapes,hand scrapes,different tunings, and hittng the stings behind the nut like in runin with the devil.

Explanation: