![The In Tune A-Z of Opera show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/034/040/small/the-in-tune-a-z-of-opera.jpg)
Summary: The In Tune A-Z of Opera. Today's letter is U for Understudy. Our guides are Mary King, Robert Lloyd, Gerald Martin-Moore and Elizabeth Meister. For details of the music used in today's podcast please visit the In Tune playlist pages http://www.bbc.co.uk/programmes/b00sq5fs