Possible Clues:

• Musical plays
• Met production responsibilities?
• They reach the stage where 31 across gets to 29 across
• Janet Baker's specialty
• La Fenice productions
• They will have 'er singing in the soap
• Dramatic musicals in which words are sung
• Work with the Times - all for show
• Works by 26-Down
• 'Wozzeck' and 'Jenufa'