Gilbert & Sullivan's audacious parody of Victorian melodrama, Ruddigore, is as spirited a piece of topsy-turvy confection as the celebrated Savoyards ever produced. It arrives at Opera North in a brand-new production directed by Jo Davies and conducted by John Wilson, whose loving restorations of MGM musicals proved such a sensation at last year's BBC Proms season. Edward Seckerson went behind the scenes to meet them both and his exclusive podcast whets the appetite for an evening of cunning disguises, dastardly deeds, and an abundance of cracking good tunes.