▁common ▁involve ▁the ▁ ▁and ▁. ▁These ▁ch ords ▁are ▁shown ▁below . ▁ ▁Ch ord ▁progress ions ▁may ▁be ▁constructed ▁with ▁borrow ed ▁ch ords , ▁including ▁two ▁progress ions ▁common ▁in ▁rock ▁music , ▁I – V II – VI – V II , ▁common ▁everywhere , ▁and ▁I – VI – IV ▁( ), ▁used ▁by ▁bands ▁like ▁Gen esis , ▁Yes , ▁and ▁N ir v ana . ▁VII ▁is ▁from ▁Mix ol yd ian ▁and ▁VI ▁is ▁found ▁in ▁both ▁A e ol ian ▁and ▁Ph ry g ian . ▁The ▁VII – I ▁cad ence ▁with ▁VII ▁subst itut ing ▁for ▁V ▁is ▁common , ▁as ▁well ▁as ▁II – I , ▁III – I , ▁and ▁VI – I . ▁ ▁In ▁popular ▁music , ▁the ▁major ▁tri ad ▁on ▁the ▁lower ed ▁third ▁scale ▁degree ▁( III ), ▁the ▁major ▁tri ad ▁on ▁the ▁lower ed ▁sixth ▁scale ▁degree ▁( VI ) ▁and ▁the ▁major ▁tri ad ▁on ▁the ▁lower ed ▁sevent h ▁scale ▁degree , ▁or ▁" flat ▁seven " ▁( V II ) ▁are ▁common . ▁ ▁Bor row ed ▁ch ords ▁have ▁typical ▁in versions ▁or ▁common ▁positions , ▁for ▁example ▁ii 6 ▁and ▁ii , ▁and ▁progress ▁in ▁the ▁same ▁manner ▁as ▁the ▁di at onic ▁ch ords ▁they ▁replace ▁except ▁for ▁VI , ▁which ▁progress es ▁to ▁V ( 7 ). ▁ ▁See ▁also ▁A e ol ian ▁harm ony ▁Di at onic ▁function ▁Harm onic ▁major ▁ ▁S ources