5 - min ute ▁bonus ▁disc ▁titled ▁Sister ▁Fa wn ▁that ▁was ▁described ▁as ▁an ▁" extension " ▁of ▁Full ▁of ▁Hell ▁& ▁Mer z bow ; ▁it ▁was ▁later ▁released ▁in ▁a ▁digital ▁format ▁as ▁well . ▁▁ ▁The ▁album ▁received ▁mixed ▁reviews ▁from ▁music ▁critics , ▁with ▁many ▁pra ising ▁the ▁collaboration ▁between ▁the ▁two ▁artists , ▁however ▁some ▁noted ▁that ▁Mer z bow ' s ▁part ▁in ▁the ▁album ▁was ▁minimal , ▁and ▁only ▁apparent ▁and ▁successful ▁on ▁the ▁album ' s ▁two ▁longer ▁tracks ▁toward ▁the ▁end : ▁" High ▁F ells " ▁and ▁" L jud et ▁Av ▁G ud ". ▁ ▁Background ▁and ▁recording ▁ ▁At ▁a ▁live ▁performance ▁in ▁New ▁York ▁head lined ▁by ▁Ph ob ia , ▁the ▁members ▁of ▁Full ▁of ▁Hell , ▁who ▁were ▁opening ▁at ▁the ▁show , ▁ran ▁into ▁Mer z bow ' s ▁live ▁drum mer ▁Bal áz s ▁P ánd i , ▁who ▁was ▁there ▁to ▁see ▁Ph ob ia . ▁After ▁the ▁show , ▁the ▁band ▁kept ▁in ▁contact ▁with ▁P ánd i , ▁who ▁would ▁send ▁them ▁albums ▁he ▁thought ▁they ▁should ▁listen ▁to ; ▁the ▁relationship ▁evol ved ▁into ▁P ánd i ▁becoming ▁their ▁indirect ▁contact ▁with ▁Mer z bow ▁front man ▁Ak ita ▁Mas ami , ▁which ▁continued ▁throughout ▁the ▁creation ▁of ▁Full ▁of ▁Hell ▁& ▁Mer z bow . ▁Full ▁of ▁Hell ▁vocal ist ▁D yl an ▁Walker ▁said , ▁" The ▁communication ▁was ▁definitely ▁minimal ▁with ▁Mas ami . ▁I ▁don ' t