In NUMBER@1 , PERSON@1 conducted the world premiere of PERSON@2 's Second Symphony in a broadcast concert by the ORGANIZATION@1 ; the Iveses heard the performance on their cook 's radio and were amazed at the audience 's warm reception to the music .

In NUMBER@1 , PERSON@1 conducted the first performance of PERSON@2 ' Second Symphony in a broadcast concert by the ORGANIZATION@2 .
