American ▁culture ▁in ▁Oklahoma ▁Category : C zech - S lov ak ▁Prote ct ive ▁Society ▁Category : Build ings ▁and ▁structures ▁in ▁Lincoln ▁County , ▁Oklahoma ▁Category : Cl ub h ouses ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁Oklahoma ▁Category : Build ings ▁and ▁structures ▁completed ▁in ▁ 1 9 1 7 ▁Category : National ▁Register ▁of ▁Historic ▁Places ▁in ▁Lincoln ▁County , ▁Oklahoma <0x0A> </s> ▁Core ▁is ▁the ▁second ▁album ▁by ▁metal ▁band ▁Per sef one . ▁The ▁album ▁was ▁released ▁on ▁ 2 3 ▁August ▁ 2 0 0 6 ▁by ▁label ▁Sound hol ic . ▁The ▁album ▁was ▁re - re leased ▁on ▁April ▁ 1 8 , ▁ 2 0 1 4 . ▁Core ▁was ▁released ▁world wide ▁through ▁Vic is ol um ▁Records . ▁The ▁album ▁included ▁a ▁ 1 6 - page ▁book let ▁and ▁a ▁bonus ▁track . ▁Pere ▁Re vert ▁was ▁involved ▁in ▁the ▁producing ▁of ▁the ▁album ▁( Sh in - ken , ▁Spirit ual ▁M igration ). ▁ ▁Con cept ▁The ▁album ▁contains ▁ 3 ▁songs , ▁each ▁with ▁a ▁length ▁of ▁an ▁average ▁ 2 3 ▁minutes , ▁that ▁include ▁multiple ▁acts ▁and ▁multiple ▁parts ▁named ▁" San ctu ary : ▁Light ▁and ▁Gr ief " ▁( 4 ▁acts ▁and ▁ 1 1 ▁parts ), ▁" Under world : ▁The ▁F allen ▁and ▁the ▁But ter fly " ▁( 4 ▁acts ▁and ▁ 1 0 ▁parts ) ▁and ▁" Se ed : ▁Core ▁and ▁Per se phone " ▁(