Image via Ebay The big, stand-up dou­ble bass or “bull fid­dle,” as it’s been called, dates to the 15th cen­tu­ry. The design has evolved, but its four strings and EADG tun­ing have remained stan­dard fea­tures of bass­es for sev­er­al hun­dred years of clas­si­cal and, lat­er, jazz, coun­try, and ear­ly rock and roll. Its boom­ing tone … Con­tin­ue read­ing The World’s First Bass Gui­tar (1936)