▁The ▁size ▁and ▁shape ▁of ▁E UB ▁bodies ▁var ies . ▁Some ▁E UB s ▁have ▁a ▁very ▁small ▁body , ▁which ▁makes ▁the ▁instrument ▁smaller ▁and ▁l ighter ▁in ▁weight . ▁Some ▁E UB s ▁have ▁larger ▁bodies , ▁including ▁the ▁upper ▁b outs , ▁to ▁aid ▁the ▁player ▁in ▁performing ▁higher ▁pitch es . ▁ ▁Electron ics ▁Some ▁E UB s ▁have ▁built - in ▁pick ups ▁and ▁volume ▁controls , ▁similar ▁in ▁function ▁to ▁the ▁pick ups ▁and ▁kn obs ▁on ▁an ▁electric ▁bass ▁( also ▁called ▁the ▁bass ▁guitar ). ▁Some ▁E UB s ▁are ▁sold ▁without ▁an ▁on board ▁pick up ▁or ▁kn obs ; ▁a ▁player ▁using ▁this ▁instrument ▁would ▁need ▁to ▁purchase ▁a ▁pie zo elect ric ▁( or ▁magnetic ) ▁pick up ▁separately ▁and ▁then ▁attach ▁the ▁pick up ▁to ▁the ▁body ▁or ▁bridge . ▁ ▁Play ing ▁ ▁E UB s ▁sometimes ▁have ▁a ▁long ▁end pin ▁to ▁support ▁the ▁instrument ▁at ▁the ▁appropriate ▁height ▁although ▁some ▁E UB s ▁can ▁be ▁mounted ▁on ▁a ▁stand ▁for ▁playing . ▁ ▁As ▁with ▁the ▁double ▁bass , ▁an ▁E UB ▁can ▁be ▁played ▁standing ▁up ▁or ▁sitting ▁on ▁a ▁st ool . ▁ ▁Us age ▁ ▁E UB s ▁are ▁used ▁in ▁a ▁wide ▁range ▁of ▁styles ▁of ▁music , ▁from ▁jazz ▁fusion ▁and ▁jazz ▁to ▁Cub an ▁music ▁and ▁rock ▁music . ▁ ▁While ▁four ▁string ▁E UB s ▁are ▁most ▁common , ▁using ▁the ▁same ▁E , A , D , G ▁tun