Hungarian conductor and composer Viktor Vaszy (1903-1979), needed for the 1953 Hungarian Radio Aida. Source: https://hu.wikipedia.org/wiki/Vaszy_Viktor (1903-1979, magyar zeneszerzo, karmester); he also appears as the conductor of that recording in the operadis Aida discography, http://www.operadis-opera-discography.org.uk/CLVEAIDA.HTM entry 49, "Conductor Viktor Vaszy - 1953, Orchestra - Hungarian Radio Orchestra".