Columbia subject headings:
Music patrons--Austria--Congresses.
Pianists--Austria--Congresses.
Wittgenstein, Paul, 1887-1961--Criticism and interpretation--Congresses.
Harvard subject headings:
Music patrons--Austria--Congresses.
Pianists--Austria--Congresses.
Suchy, Irene--Interviews.
Wittgenstein, Paul, 1887-1961--Criticism and interpretation--Congresses.
Princeton subject headings:
Hindemith, Paul, 1895-1963. Die Klaviermusik (Klavier: linke Hand) mit Orchester op. 29.
Music patrons--Biography--Congresses.
Musicians--Austria--Biography--Congresses.
Pianists--Austria--Biography--Congresses.
Ravel, Maurice, 1875-1937. Concertos,
Schmidt, Franz, 1874 December 22-1939. Concerto,
Stonborough-Wittgenstein, Margarethe, 1882-1958--Congresses.
Wittgenstein, Ludwig, 1889-1951--Congresses.
Wittgenstein, Paul, 1887-1961--Congresses.
Wittgenstein, Paul, 1887-1961--Family--Congresses.