Opera bugs

The Metropolitan Opera's constantly revolving casts for "Tristan und Isolde" aren't the only, or even the weirdest, casualties of this flu-infected opera season.

The Pittsburgh Post-Gazette's Andrew Druckenbrod reports on a Pittsburgh Opera production of "Aida," in which Radames loses his voice and the conductor sings the part from the pit while the tenor stays onstage and lip-syncs:

http://www.post-gazette.com/pg/08093/869798-388.stm