- Theo Muller
(b Stadskanaal, Feb 7, 1870; d Amsterdam, Sept 18, 1939). Dutch composer and conductor. He studied the violin, the piano and composition at the Leipzig Conservatory (1888–90). His most important teacher was Oscar Paul, who lectured on the history of music and musical aesthetics. Dopper was otherwise self-taught. Back in the Netherlands, he completed his first opera Het blinde meisje van Castel-Cuillé in 1892. In 1897 he became violinist and later also repetiteur and assistant conductor at the Nederlandse Opera in Amsterdam, until this company was dissolved in 1903. In 1906, Mengelberg performed his Rembrandt Symphony with the Concertgebouw Orchestra. Between 1906 and 1908 Dopper worked in the United States as one of the conductors of the Savage Opera Company; among other things, he conducted the American première of Madama Butterfly. At the suggestion of Mengelberg, he was nominated as second conductor of the Concertgebouw Orchestra in ...