Originally intended to mimic the sound of a muted trumpet, it didn't take long for guitarists like Jimi Hendrix and Frank Zappa to make that sweet, sweeping "wah-wah" sound an integral part of the rock and roll lexicon.
The following content is related to the September 2013 issue of Guitar World. For the full range of interviews, features, tabs and more, pick up the new issue on newsstands now, or in our online store.
DigiTech has announced that its Element XP and Element guitar multi-effect pedals are now shipping. The DigiTech Element XP features an expression pedal and offers 38 effects, while the Element provides 34 effects.