ics ▁than ▁for ▁lower , ▁meaning ▁that ▁higher ▁harm on ics ▁are ▁so fter — though ▁the ▁details ▁of ▁this ▁differ ▁from ▁instrument ▁to ▁instrument . ▁ ▁The ▁exact ▁combination ▁of ▁different ▁harm on ics ▁and ▁their ▁amplit udes ▁is ▁a ▁primary ▁factor ▁affect ing ▁the ▁tim bre ▁or ▁tone ▁quality ▁of ▁a ▁particular ▁musical ▁tone . ▁ ▁The oret ically , ▁v ibration ▁over ▁half ▁the ▁string ' s ▁length ▁will ▁be ▁twice ▁as ▁fast , ▁and ▁v ibration ▁over ▁one - third ▁of ▁the ▁string ▁will ▁be ▁three ▁times ▁as ▁fast , ▁as ▁the ▁fundamental ▁v ibration ▁over ▁the ▁whole ▁string ' s ▁length . ▁In ▁the ▁theoretical ▁string , ▁however , ▁the ▁only ▁force ▁acting ▁to ▁return ▁a ▁part ▁of ▁the ▁string ▁to ▁its ▁rest ▁position ▁is ▁the ▁t ension ▁between ▁its ▁ends . ▁ ▁If ▁you ▁try ▁b ending ▁a ▁short ▁piece ▁of ▁piano ▁wire ▁or ▁guitar ▁string ▁slightly ▁with ▁your ▁fingers , ▁you ▁can ▁feel ▁the ▁wire ' s ▁resistance ▁to ▁b ending . ▁In ▁a ▁v ibr ating ▁string , ▁that ▁resistance ▁adds ▁to ▁the ▁effect ▁of ▁string ▁t ension ▁in ▁returning ▁a ▁given ▁part ▁of ▁the ▁string ▁toward ▁its ▁rest ▁position . ▁The ▁result ▁is ▁a ▁frequency ▁of ▁v ibration ▁higher ▁than ▁the ▁theoretical ▁frequency . ▁And ▁because ▁the ▁wire ' s ▁resistance ▁to ▁b ending ▁increases ▁as ▁its ▁length ▁decre ases , ▁its ▁effect ▁is ▁greater ▁in ▁higher ▁harm on ics ▁than ▁in ▁lower . ▁ ▁T ines ▁and ▁re eds ▁▁ ▁T ines ▁and