February 26, 2011 By Jacob Stockinger This week brought a mix of serious news and goofy news in the world of classical music , especially opera . Here is a round-up: ITEM: 3-D is coming to the Metropolitan Opera : http://www.nytimes.com/2011/02/16/arts/music/16siegfried.html?_r=2&partner=rss&emc=rss ITEM: Opera audiences — and, one presumes, classical music audiences