▁has ▁made ▁a ▁range ▁of ▁these ▁Can nt aire ach d ▁manuscript s ▁available ▁online ▁as ▁a ▁compar ative ▁resource . ▁ ▁There ▁was ▁reported ly ▁a ▁third ▁lost ▁volume ▁of ▁the ▁Campbell ▁can nt aire ach d ▁manuscript s ▁d ating ▁from ▁the ▁late ▁ 1 8 th ▁century . ▁The ▁first ▁two ▁volumes ▁were ▁also ▁lost ▁in ▁ 1 8 1 6 ▁but ▁redis cover ed ▁in ▁ 1 9 0 7 ▁in ▁the ▁possession ▁of ▁Anne ▁Campbell , ▁a ▁desc endant ▁of ▁Col in ▁Campbell . ▁R oder ick ▁C annon ▁and ▁Peter ▁Mc Cal ister ▁have ▁recently ▁initi ated ▁a ▁public ▁campaign ▁to ▁track ▁down ▁any ▁living ▁relatives ▁of ▁Campbell ▁or ▁other ▁parties ▁who ▁might ▁have ▁acquired ▁the ▁document ▁without ▁real ising ▁its ▁historical ▁and ▁musical ▁significance . ▁ ▁Performance ▁line ages ▁ ▁The ▁or al ▁transmission ▁of ▁p ib ro ch ▁also ▁surv ives ▁as ▁a ▁living ▁tradition ▁through ▁diverse ▁line ages ▁of ▁teachers ▁and ▁pup ils , ▁trace able ▁back ▁to ▁the ▁earliest ▁accounts ▁of ▁the ▁form . ▁Dist inct ive ▁approaches ▁to ▁performance ▁technique ▁and ▁interpretation ▁developed ▁through ▁different ▁line ages ▁of ▁p ib ro ch ▁playing ▁and ▁instruction , ▁with ▁two ▁of ▁the ▁most ▁influ ential ▁coming ▁to ▁be ▁known ▁as ▁the ▁Camer on ▁style , ▁which ▁is ▁more ▁rounded , ▁and ▁the ▁Mac Ph erson ▁style , ▁which ▁is ▁more ▁cli pped . ▁ ▁Record ings ▁by ▁acc laimed ▁pract ition ers ▁such ▁as ▁Robert ▁Re id , ▁a ▁leading ▁pro ponent ▁of ▁the