#spalted #maple ash baritone bass basskit beginner bridge build custom dingobass diy es-1 es-1f es-1tl ex-1e ex-4 ex5 explorer falcon fender finish first build floyd rose bridge fretless gpr gr-1sf gretsch guitar hb4 hollow body humbuckers ib-1 ib-4 ib-5 ib4 ib5 jazzmaster jm-1 jz-1 jz-6 led les maple marcel master metal bass mosch music neck newbie nitro noob nut parts list pbass pcb pedal phase pickups rc-1 pickups rc-4 sanding seal and finish shim soldering st-1 thunderbird tl-1 tuning peg gear ratio wiring