▁hip ▁with ▁player ▁standing ▁or ▁kne e ▁if ▁sitting . ▁ ▁Many ▁E UB s ▁therefore ▁mirror ▁these ▁features ▁in ▁their ▁design . ▁ ▁There ▁will ▁often ▁be ▁a ▁raised ▁reference ▁point ▁about ▁ 1 / 3 ▁down ▁from ▁the ▁nut ▁to ▁the ▁bridge ▁at ▁either ▁the ▁" D " ▁or ▁" E b " ▁position ▁( where ▁the ▁notes ▁" D " ▁or ▁" E b " ▁are ▁found ▁on ▁the ▁" G " ▁string )) ▁to ▁represent ▁the ▁' ne ck ▁he el ' ▁of ▁the ▁ac oust ic ▁bass . ▁ ▁Many ▁E UB s ▁have ▁wooden ▁or ▁metal ▁bars ▁to ▁bra ce ▁the ▁instrument ▁against ▁the ▁music ian ' s ▁body , ▁to ▁act ▁as ▁the ▁upper ▁b outs ▁of ▁a ▁wooden ▁double ▁bass . ▁The ▁wooden ▁or ▁metal ▁bra ce ▁bars ▁help ▁the ▁E UB ▁to ▁rest ▁against ▁the ▁player ' s ▁body ▁in ▁a ▁position ▁roughly ▁similar ▁to ▁the ▁way ▁a ▁double ▁bass ▁rest s ▁against ▁the ▁body . ▁The ▁most ▁complete ▁example ▁of ▁this ▁is ▁the ▁Yam aha ▁' sil ent ▁bass ' ▁which ▁has ▁a ▁remov able ▁frame ▁designed ▁to ▁match ▁the ▁outline ▁of ▁right ▁hand ▁side ▁and ▁left ▁upper ▁bout ▁of ▁an ▁u pr ight ▁bass ▁allowing ▁for ▁easy ▁trans ference ▁of ▁double ▁bass ▁techniques . ▁Most ▁E UB s ▁are ▁f ret less , ▁but ▁a ▁small ▁number ▁are ▁fre tt ed , ▁to ▁facil itate ▁their ▁use ▁by ▁players ▁of ▁fre tt ed ▁electric ▁bass . ▁Some ▁f ret less ▁E UB