chestra . ▁Rec ording ▁sessions ▁for ▁the ▁score ▁began ▁on ▁April ▁ 1 2 , ▁ 1 9 8 2 ▁at ▁the ▁Warner ▁B ros . ▁lot , ▁The ▁Bur bank ▁Studios ▁and ▁continued ▁until ▁April ▁ 1 5 . ▁A ▁pick up ▁session ▁was ▁held ▁on ▁April ▁ 3 0 ▁to ▁record ▁music ▁for ▁the ▁Mut ara ▁ne b ula ▁battle , ▁while ▁another ▁session ▁held ▁on ▁May ▁ 3 ▁was ▁used ▁to ▁cover ▁the ▁recently ▁changed ▁ep ilog ue . ▁Hor ner ▁used ▁synth es izers ▁for ▁anc ill ary ▁effects ; ▁at ▁the ▁time , ▁science ▁fiction ▁films ▁such ▁as ▁E . T . ▁the ▁Ext ra - T err est rial ▁and ▁The ▁Th ing ▁were ▁es ch ew ing ▁the ▁synth es izer ▁in ▁favor ▁of ▁more ▁traditional ▁orch est ras . ▁Craig ▁H ux ley ▁performed ▁his ▁invent ed ▁instrument — the ▁Bl aster ▁Be am — d uring ▁recording , ▁as ▁well ▁as ▁compos ing ▁and ▁performing ▁electronic ▁music ▁for ▁the ▁Gen esis ▁Project ▁video . ▁While ▁most ▁of ▁the ▁film ▁was ▁" locked ▁in " ▁by ▁the ▁time ▁Hor ner ▁had ▁begun ▁compos ing ▁music , ▁he ▁had ▁to ▁change ▁musical ▁c ue ▁orch estr ation ▁after ▁the ▁integration ▁of ▁special ▁effects ▁caused ▁changes ▁in ▁scene ▁dur ations . ▁ ▁Th emes ▁The ▁W r ath ▁of ▁Khan ▁features ▁several ▁rec urr ing ▁them es , ▁including ▁death , ▁res urre ction , ▁and ▁growing ▁old . ▁Upon ▁writing ▁his ▁script , ▁Meyer ▁hit ▁upon