▁( born ▁ 1 2 ▁April ▁ 1 7 7 4 ▁in ▁Über au chen , ▁died ▁ 2 ▁October ▁ 1 8 5 1 ▁in ▁Stuttgart ) ▁was ▁a ▁German ▁opera ▁singer , ▁opera ▁director , ▁vocal ▁ped agog ue , ▁fre em ason ▁and ▁es oter ic ▁writer . ▁ ▁Biography ▁ ▁Kre bs ▁was ▁a ▁vocal ist ▁at ▁the ▁Wür ttemberg ischer ▁Hof oper ▁in ▁Stutt gar ▁, ▁where ▁he ▁was ▁also ▁the ▁libre tt ist ▁of ▁several ▁oper as . ▁On ▁his ▁name ▁day ▁Carl ▁Maria ▁von ▁We ber ▁composed ▁the ▁( lost ) ▁bur les que ▁" Ant on ius " ▁in ▁ 1 8 0 8 ▁or ▁ 1 8 0 9 . ▁ ▁Today , ▁however , ▁he ▁is ▁mainly ▁known ▁as ▁the ▁author ▁of ▁es oter ic ▁and ▁Mason ic ▁scripts , ▁which ▁he ▁published ▁under ▁the ▁pseud onym ▁Johann ▁Bapt ist ▁K ern ing ▁. ▁ ▁He ▁was ▁appointed ▁for ▁the ▁spiritual ▁status ▁and ▁sent ▁to ▁Const ance ▁to ▁study ▁Catholic ▁the ology . ▁This ▁he ▁finished ▁in ▁Fre ib urg ▁im ▁Bre is g au . ▁From ▁ 1 7 9 5 ▁to ▁ 1 8 2 3 ▁he ▁was ▁a ▁member ▁of ▁the ▁Stuttgart ▁Hof oper . ▁In ▁Stuttgart , ▁he ▁worked ▁from ▁ 1 8 2 3 ▁to ▁ 1 8 4 9 ▁as ▁a ▁director ▁and ▁vocal ▁ped agog ue . ▁ ▁Kre bs ▁tried ▁to ▁understand ▁the ▁ess ence ▁of ▁Fre em ason ry ▁in ▁a ▁myst ical ▁way