Proficient with the violin since childhood, at age 17 Gustav entered military service as a musician and eventually received training at the Royal Academy of Music in Charlottenburg Palace in Berlin. During his tenure as Band Meister of the First Prussian Regiment of Grenadiers in Konigsberg he became somewhat of a celebrity known for his arrangement of military marches and Mozart overtures. Leaving the German Army in 1909, Gustav found freelance work directing orchestras in several cities and in the early 1920s was a pioneering radio orchestra conductor. He later owned a garden restaurant popular with tourists in Königs Wusterhausen in the state of Brandenburg.
https://www.blackpast.org/global-african-history/sabac-el-cher-gustav-albrecht-1868-1934/
Also, Musikmeister is a great title.