▁well ▁as ▁frequent ▁use ▁of ▁Th ai - style ▁per cussion . ▁ ▁Most ▁of ▁their ▁Th ai - infl uen ced ▁songs ▁took ▁the ▁form ▁of ▁folk ▁ball ads , ▁but ▁they ▁also ▁made ▁frequent ▁use ▁of ▁the ▁faster ▁and ▁more ▁per cuss ive ▁" mor ▁l am " ▁rh yth ms . ▁ ▁In ▁their ▁early ▁days , ▁they ▁often ▁took ▁mel od ies ▁directly ▁from ▁American ▁and ▁British ▁folk ▁songs ▁like ▁" S ong ▁to ▁Wo ody " ▁" Y ellow ▁Bird " ▁" John ▁Bar ley c orn ▁Must ▁Die " ▁and ▁" A ▁Hard ▁Rain ' s ▁a ▁G onna ▁Fall " ▁and ▁adapted ▁them ▁with ▁political ▁lyr ics ▁in ▁Th ai . ▁ ▁Their ▁later ▁music ▁sometimes ▁had ▁a ▁notice able ▁country ▁music ▁influence ▁in ▁songs ▁like ▁" Num ▁Ph ane ja wn " ▁and ▁" F on ▁The wa ," ▁although ▁as ▁a ▁whole , ▁the ▁influence ▁of ▁Western ▁folk ▁dimin ished ▁as ▁their ▁career ▁went ▁on . ▁ ▁When ▁the ▁band ▁went ▁electric , ▁it ▁expanded ▁its ▁range ▁of ▁sound ▁to ▁include ▁influ ences ▁of ▁rock , ▁reg ga e , ▁folk ▁music ▁from ▁other ▁Asian ▁countries , ▁and ▁a ▁wider ▁range ▁of ▁Th ai ▁musical ▁styles . ▁ ▁Band ▁history ▁The ▁found ers ▁of ▁Car avan , ▁Sur ach ai ▁J ant im ath awn ▁(" N ga ▁Car avan ") ▁and ▁W iras ak ▁Sun tha wn si , ▁were ▁student ▁activ ists ▁at ▁Ram k ham ha eng ▁University ▁at ▁a ▁time