"Von Angst erfüllt", aria from the opera "Der Abt von Fiecht" ("The Abbot of Fiecht") "Von Angst erfüllt", aria from the opera "Der Abt von Fiecht" ("The Abbot of Fiecht") Main opus "Der Abt von Fiecht" ("The Abbot of Fiecht"), opera in 1 prelude and 2 acts