Paul and Olga Müller had a son, Siegfried Fritz Müller, who was a piano pupil of the Viennese music theorist Heinrich Schenker from October 1922 to May 1925. He went on to be a professional pianist.
I do not have birth/death dates for Siegfried Fritz M., or further details of his life or career. It is significant that he is the nephew of Friedrich Siegfried Buxbaum, the great cellist of the Vienna Symphony Orchestra and Rosé String Quartet, his mother's brother.
Six letters from Siegfried Fritz M. to Heinrich Schenker survive, and one from Paul Müller to Heinrich Schenker, dating between 1923 and 1925 incl.
Can you provide me with any further information about Paul or Olga, including birth/death dates, and the university and discipline to which Paul belonged?
-- Ian Bent
idb1@columbia.edu
