Opera North's Howard Assembly Room (above) is no longer a well-kept secret. Lovingly restored to its former Victorian glory, this one-time annexe to the Grand Theatre, Leeds, has had a chequered history - even briefly servicing the furtive mackintosh brigade as a picture palace of the bluest persuasion. Now, though, it's been born again as a vibrant performance space. A new season of events under the umbrella title of VOICES is about to launch featuring acts as diverse as The Tallis Scholars, Jackie Oates and Chumbawamba. General manager of the space Richard Ashton and artistic director Dominic Gray talked with me about their plans.

The plot of this rarely performed Gilbert and Sullivan spoof melodrama is gloriously amusing. The male heirs of the Murgatroyd family suffer under a witch’s curse which forces them to commit a crime each day, or suffer an agonising death. Sir Ruthven Murgatroyd has fled the ancestral home and now lives under a pseudonym, meaning that his younger brother Despard has had to assume both the baronetcy and the duty to commit the daily crime. Unlike his older brother's dastardly penchant for stealing babies and robbing banks, he finds it hard to progress beyond forging cheques and fiddling expenses.

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.

This is a revival of the 1993 production originally directed by Phyllida Lloyd (of Mamma Mia! fame). Directed on this occasion by Peter Relton, it still works brilliantly. Lloyd has updated the setting to 1950s Paris with her young bohemians wearing polo necks, jeans and berets. A gleaming motorbike is one of the objects adorning their living space, its condition degenerating along with the health of Mìmi until it is replaced by a pedal cycle in the final act.

Werther is based on the young Goethe’s semi-autobiographical epistolary novel which tells of a young artist’s thwarted love for a simple country girl who is already engaged. First performed in Vienna in 1892, it is audibly a product of that time. You can hear the predominant influence of Wagner in piquant unresolved dissonances, suggestive of a fleeter-footed, gallic Tristan with added harps. The sheer depth and splendour of the music is what makes a potentially risible narrative work so gloriously: it is superbly paced and always entertaining. And Opera North’s first stab at it since 1982 satisfies on every level.

The film critic Mark Kermode maintains that if a film is advertised on the side of a bus, it will inevitably be rubbish. Opera North are advertising this revival of Tim Albery’s 2004 Così fan tutte extensively on the sides of buses here in Leeds. Kermode’s theorem evidently doesn’t hold for opera.