during the 1960s and 1970s, pearse was much in demand as a studio session musician and record producer for several companies. he continued to write tuition books for the guitar and other stringed instruments. he became well known in germany, headlining folk festivals and described by the weekly magazine stern as ""the nation's guitar teacher"". in 1978 he moved to the usa, where he designed products for the martin guitar company. after leaving martin he founded breezy ridge instruments, along with mary faith rhoads, to market his line of guitar strings and other guitar accessories.