Table:
text: List of piano composers
20th century
20th century
Composer Born Died Nationality Notable_works_for_piano Remarks_
Duke Ellington 1899 1974 American  Jazz
Samuil Feinberg 1890 1962 Russian  
Ossip Gabrilowitsch 1878 1936 Russian, American  
George Gershwin 1898 1937 American Three Preludes , George Gershwin`s Songbook Jazz-influenced
Alberto Ginastera 1916 1983 Argentine  Earlier works often integrate Argentine folk themes; later works increasingly abstracted
Alexander Glazunov 1865 1936 Russian  Romantic
Leopold Godowsky 1870 1938 Polish, American Studies on Chopin`s Études (1894–1914) 
Percy Grainger 1882 1961 Australian, English, American  
Enrique Granados 1867 1916 Spanish  Distinctly Spanish
Scott Joplin 1867 1917 American  Ragtime
Dmitri Kabalevsky 1904 1987 Russian, Soviet  
Aram Khachaturian 1903 1978 Soviet, Armenian  
Viktor Kosenko 1896 1938 Ukrainian  
Joseph Lamb 1887 1960 American  Ragtime

Question: List of piano composers, how old was Alberto Ginastera when he died?

Question: From the list of piano composers, how many composers died before 1960?