[2] In 1934 he was involved in the foundation and in January 1935 in the ceremonial opening of the Robert Schumann Conservatory.
From 1946 Balzer was a guest conductor in opera and concerts, mainly in Romance language-speaking countries (Spain, Italy, Brazil), where he reactivated earlier contacts.
[2][3] During his time in Düsseldorf he led several world premieres of operas such as Gerster's Enoch Arden [de] and Die Hexe von Passau.
[5] As director of the Düsseldorfer Symphoniker, "Balzer pursued an opportunistic programme policy, and the orchestra was the central orchestral body at the Reichmusiktage 1938 and 1939.
"[6] Helmut Kirchmeyer, one of Balzer's successors as director of the Düsseldorf Music Academy, "recognizes Balzer as a person who tries in every conceivable way to survive the political reality of a blood dictatorship as unscathed as possible, to get past his own time and to do good within the scope of his possibilities".