son ▁or ▁Wat ▁ye ▁what ▁I ▁got ▁late ▁y est reen , ▁suggest ▁a ▁dor ian ▁scale ▁may ▁also ▁sometimes ▁have ▁been ▁used , ▁requiring ▁a ▁minor ▁third ▁instead ▁of ▁the ▁major ▁third ▁of ▁the ▁mix ol yd ian ▁scale . ▁This ▁could ▁be ▁achieved ▁by ▁cross - f ing ering ▁or ▁half - hol ing . ▁P ete ▁Stewart ▁has ▁further ▁argued ▁ ▁that ▁the ▁existence ▁of ▁some ▁G ▁major ▁t unes ▁with ▁a ▁nine - note ▁comp ass ▁from ▁G ▁to ▁a ▁suggests ▁that ▁Border ▁pip es ▁formerly ▁sound ed ▁a ▁c ▁natural , ▁rather ▁than ▁c ▁sharp ; ▁cross - f ing ering ▁would ▁then ▁have ▁been ▁needed ▁to ▁sound ▁a ▁c ▁sharp . ▁ ▁Some ▁instruments ▁are ▁made ▁in ▁other ▁pitch es , ▁typically ▁B ▁flat ▁or ▁G , ▁rather ▁than ▁A . ▁ ▁D ron es ▁The ▁instrument ▁has ▁three ▁cyl ind r ically ▁b ored ▁d ron es ▁inserted ▁into ▁the ▁pipe bag ▁by ▁a ▁common ▁stock , ▁typically ▁tun ed ▁A , ▁a , ▁e ', ▁or ▁A , ▁a , ▁a . ▁ ▁In ▁contrast , ▁the ▁Great ▁High land ▁Bag pipe ▁has ▁each ▁dr one ▁in ▁a ▁separate ▁stock . ▁The ▁dr one ▁tun ing ▁A , ▁e , ▁a ▁was ▁used ▁in ▁half - long ▁pip es ▁in ▁the ▁early ▁ 2 0 th ▁century , ▁and ▁though ▁still ▁rare , ▁sets ▁are ▁now ▁beginning ▁to ▁be ▁made ▁with ▁this ▁dr one ▁tun ing ▁again . ▁ ▁Bag ▁and ▁bell ows ▁The ▁bag