ve ▁lost ▁my ▁tone ▁center , ▁don ' t ▁know ▁where ▁the ▁hell ▁I ▁am ▁and ▁stuff . ▁And ▁then , ▁eventually , ▁he ' d ▁figure ▁out ▁what ▁it ▁was ▁he ▁wanted ▁to ▁do . ▁A ▁lot ▁of ▁it ▁was ▁just ▁hunting ▁and ▁pe ck ing , ▁the ▁way ▁some ▁of ▁us ▁type ." ▁ii ▁– ▁V ▁and ▁I ▁– ▁VII ▁altern ations . ▁The ▁VII ▁ch ord , ▁which ▁is ▁common ▁in ▁the ▁music ▁of ▁the ▁Four ▁F resh men ▁and ▁popular ▁music ▁in ▁general , ▁is ▁the ▁n ond iat onic ▁ch ord ▁that ▁appears ▁the ▁most ▁in ▁Wilson ' s ▁compos itions . ▁Altern ations ▁between ▁VII ▁and ▁I ▁can ▁be ▁heard ▁in ▁" Gu ess ▁I ' m ▁D umb " ▁and ▁the ▁intro ▁to ▁" Cal iforn ia ▁Girls ". ▁▁ ▁Step wise ▁di at onic ▁r ises ▁such ▁as ▁I ▁– ▁i ii ▁– ▁IV ▁– ▁V . ▁ ▁A ▁circle ▁of ▁fifth s ▁run ▁that ▁begins ▁with ▁the ▁medi ant ▁( or ▁i ii ), ▁derived ▁from ▁" Be ▁My ▁Baby ". ▁Ch ord ▁in versions , ▁especially ▁a ▁t onic ▁with ▁a ▁fifth ▁in ▁the ▁bass . ▁Paul ▁McC art ney ▁commented ▁on ▁Wilson ' s ▁bass ▁lines : ▁" If ▁you ▁were ▁in ▁the ▁key ▁of ▁C , ▁you ▁would ▁normally ▁use – the ▁root ▁note ▁would ▁be , ▁like , ▁a ▁C ▁on ▁the ▁bass ▁... ▁Brian ▁would ▁be ▁using ▁notes ▁that ▁wer en ' t ▁the ▁obvious ▁notes ▁to ▁use .