Daum's career developed as follows:
1928–29: Staatstheater Wiesbaden.
1929–31: Stadttheater Stettin.
1931–32: Stadttheater Magdeburg.
From 1933 until the beginnings of the 1950s, Daum was first lyrical tenor in Leipzig.
There, Daum sang in the world premieres of Die pfiffige Magd by Julius Weismann (Leander, 1939),
and of Der Garten des Paradieses by Felix Petyrek (1942).
In 1935, he took part in the revival of Händel's Arminio (as Sigismondo). In 1942, Daum sang in the German premiere of
Cyrano de Bergerac (by Alfano).
His repertoy included: Ottavio, Tamino, Almaviva, Ernesto, Alessandro Stradella, Cavaradossi, Turiddu,
Matteo, Frieder (An allem ist Hütchen schuld, by Siegfried Wagner).
Daum was also appreciated as a concert and oratorio singer.
About his death, nothing is known.
Reference: Kutsch & Riemens