Chicago Symphony Orchestra The following annoucement was made from backstage by the house manager at the request of Chicago Symphony Orchestra management and Carnegie Hall Artistic Programming: " Good Evening Ladies and Gentlemen, Alexanders Antonenko has been suffering from a stomach ailment today and yesterday and is under medication. He has agreed to sing this evening, but begs your indulgence. Thank you." The program was performed with two intermissions: one after Act I and one after Act II. 2011-04-15T20:00:00