Lyric Opera of Chicago will remain a national on-air presence after raising enough money to keep its new radio series on the air through the 2011-12 season. “After a four-year hiatus, Lyric returned to the air Oct. 21 as a result of a new contract with its principal unions and a $2 million grant [which] required an equal amount be raised from others. The Lyric now says that it has completed the match.”