is ▁on ▁them es ▁of ▁self - ex ile , ▁terminal ▁ill ness ▁and ▁per se ver ance . ▁ ▁Following ▁those ▁releases , ▁Gu zz ardo ▁began ▁writing ▁music ▁for ▁a ▁tr ance ▁music ▁project ▁called ▁pl asma Man ; ▁of ▁which ▁Gl enden ing ▁was ▁the ▁producer . ▁As ▁a ▁self - re leased ▁collection ▁of ▁music ▁the ▁pl asma ▁Man ▁E . P ., ▁t ing ed ▁with ▁their ▁usual ▁dry ▁humor , ▁is ▁titled ▁option ▁b . ▁ ▁In ▁ 2 0 0 9 , ▁the ▁du o ▁released ▁the ▁full - length ▁album , ▁Identity . ▁They ▁performed ▁several ▁high - profile ▁shows ▁to ▁promote ▁the ▁album , ▁including ▁a ▁performance ▁at ▁The ▁Kin etic ▁Festival ▁in ▁Canada . ▁ ▁Disc ography ▁Studio ▁albums ▁ ▁Advanced / Dec ay ▁( 2 0 0 1 ) ▁ ▁Element al ▁( 2 0 0 4 ) ▁ ▁Int ellig ent ▁Design ▁( 2 0 0 6 ) ▁ ▁Proof ▁of ▁Life ▁( 2 0 0 7 ) ▁ ▁Identity ▁( 2 0 0 9 ) ▁ ▁Science ▁and ▁Sound ▁( 2 0 1 2 ) ▁ ▁R ise ▁to ▁Con quer ▁( 2 0 1 8 ) ▁ ▁Singles ▁and ▁EP s ▁ ▁The ▁Art ▁of ▁Cont rolling ▁and ▁Compos ing ▁( 1 9 9 9 ) ▁ ▁The ▁Fall ▁( 2 0 0 1 ) ▁ ▁Reg rets ▁( 2 0 0 1 ) ▁ ▁L umin ous ▁( 2 0 0 4 ) ▁ ▁H ollow ▁( 2