"Esser" . "bewerker" . . "42442" . "Bert" . "componist" . "arrangeur" . "ESSER, BERT |f [componist]" . "ne" . "1931-00-00" . "20181" . "ESSER, BERT" . "b" . "ESSER, BERT" . "2021-12-26" . "ESSER, BERT |f [arrangeur]" . "2021" . "ESSER, BERT |f [bewerker]" . . "1931" . "1532" .