NEW YORK (AP) — Duane Eddy, a pioneering guitar hero whose reverberating electric sound on instrumentals such as “Rebel Rouser,” “Forty Miles of Bad Road” and “Cannonball” helped put the twang in early rock ‘n’ roll and influenced George Harrison, Bruce Springsteen and countless other musicians, has died at age 86. With his raucous rhythms, and backing hollers and hand claps, Eddy sold more than 100 million records worldwide, and mastered a distinctive sound based on the premise that a guitar’s bass strings sounded better on tape than the high ones.