After his activity as a movie actor he wrote lyrics for several movies.
The actor Franz Baumann normally worked at the theater during his long-standing career.
The increasing spread of radio gave Baumann a further boost in his career as a singer. His voice was well suited to the new medium, and when he was in New York for a long time, he also stood in front of the microphone for several broadcasters.
Baumann also took on feature film roles several times up to 1933.
There are no longer any traces of Baumann's songs from the time after the Second World War.