▁ 6 th ▁string ), ▁with ▁the ▁III ▁degree ▁of ▁the ▁mode ▁alter ed ▁to ▁a ▁major ▁ 3 rd ▁when ▁resol ving ▁to ▁I . ▁ ▁To ▁adapt ▁to ▁the ▁singer ' s ▁vocal ▁range , ▁guitar ists ▁can ▁use ▁a ▁" cej illa " ▁( cap o ) ▁to ▁play ▁in ▁any ▁key ▁while ▁pres erving ▁the ▁known ▁ch ord ▁positions . ▁Modern ▁guitar ists ▁often ▁play ▁sole á ▁using ▁other ▁ch ord ▁positions ▁or ▁even ▁changing ▁the ▁tun ing ▁of ▁the ▁guitar ▁to ▁experiment ▁with ▁new ▁sounds , ▁especially ▁in ▁solo ▁instrument al ▁pieces . ▁ ▁The ▁typical ▁fl amen co ▁pro gression ▁iv , ▁III , ▁II , ▁I ▁( an ▁alter ed ▁Ph ry g ian ▁cad ence ) ▁is ▁heard ▁several ▁times ▁during ▁the ▁development ▁of ▁the ▁song . ▁In ▁E ▁alter ed ▁Ph ry g ian , ▁the ▁pro gression ▁would ▁be ▁Am , ▁G , ▁F , ▁E ▁( the ▁E ▁ch ord ▁should ▁be ▁Em ▁in ▁a ▁di at onic ▁Ph ry g ian ▁cad ence , ▁but ▁its ▁di at onic ▁third ▁– ▁G ▁– ▁is ▁alter ed ▁to ▁a ▁G ). ▁ ▁A ▁usual ▁pro gression ▁with ▁a ▁four - line ▁st anza ▁is ▁the ▁following : ▁▁ ▁first ▁line : ▁E 7 , ▁Am , ▁▁ ▁transition ▁to ▁ 2 nd ▁line : ▁Am , ▁G , ▁( or ▁F , ▁G ) ▁▁ 2 nd ▁line : ▁F , ▁E ▁▁ 3 rd ▁line : ▁G 7 , ▁C ▁(