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 through Europe alongside the renowned young cellist Paul Hermann. Székely was a friend of Béla Bartók, and he requested the composition of Bartók's Second Violin Concerto, including its dedicatee and performer at its premiere in March 1939, conducted by Mengelberg.