 Complete the following phrase:  From 1900 to 1902 he worked as répétiteur at the Semperoper Dresden. From 1901 to 1916, he was cantor and organist at the Jakobikirche and from 1903 to 1928 a teacher at the Dresden Conservatory. From 1913 to 1928, he was a music teacher at the Dresden Kreuzschule. From 1916 to 1945 he was cantor and organist at the Erlöserkirche, where he was substituted by Cantor Reiche during his military service. From 1928, he was a lecturer in piano, organ and music theory at the orchestral school of the Sächsische Staatskapelle Dresden. After the 