Paul or Pavel Avgustovich Pabst was a pianist, composer, and Professor of Piano at Moscow Conservatory.
Pavel Pabst (1895)
Nikolai Karlovich Medtner was a Russian composer and virtuoso pianist. After a period of comparative obscurity in the 25 years immediately after his death, he is now becoming recognized as one of the most significant Russian composers for the piano.
Medtner, 1910 postcard
Medtner's home at Golders Green, London, where he lived from 1935 to 1951