#spalted #maple 7 string baritone bass basskit bass kit beginner bridge bridge position dingobass diy dtl-1sb effects electronics es-1 es-1f esb-4sc ex-1e fender first build first time builder first timer fretboard fretless gr-1sf gretsch guitar guitar build hb4 hollow body hollowbody ib-5 jazzmaster jm-1 jz-1 jz-6 led les marcel master multiscale music my build diary natural finish neck newbie nitro noob paul pbass pedal phase pickups pitbull guitars rc-1 pickups rc-4 scale length shim ssr-1 st-1 tb-4 tele headstock thunderbird tl-1 tlb-4m tuning peg gear ratio tusq v bass wiring wiring diagram