Shred guitar is a virtuosic style of electric guitar performance. Categorized by its use of advanced techniques, shredding is a complex art form. Shred guitar includes fast alternate picking, sweep-picking, diminished and harmonic minor scales, tapping, and whammy bar use.[1] Often incorporated in heavy metal, guitarists employ a guitar amplifier and a range of effects such as distortion. This creates a sustained guitar tone and may facilitate guitar feedback.
The term is sometimes used in reference to virtuosic playing by instrumentalists other than guitarists as well. The term "shred" is used outside the metal idiom, particularly by bluegrass musicians and jazz-rock fusion electric guitarists.