Székely toured Europe with the virtuoso young cellist Paul Hermann. Székely was a friend of Béla Bartók and was the one to request the composition of Bartók's Second Violin Concerto and its dedicatee as well as performer at its premiere in March, 1939, Mengelberg conducting.
Székely traveled to Europe with the renowned young cellist Paul Hermann, who was a friend of Béla Bartók. Székely commissioned Bartók's Second Violin Concerto, which premiered in March 1939, conducted by Mengelberg.