It’s always tempting, at curtain-up in La Traviata, to settle back, half-close one’s eyes, and soak up the familiar without the anxiety of the new. Not this time you won’t. David McVicar’s lavish 2009 text-true staging is being revived with a generally strong, stylish and dependable cast.

I find it hard to know quite what to make of Ainadamar, Argentinian composer Osvaldo Golijov’s one-act opera about the life and death of the Spanish poet Federico Garcia Lorca, who was murdered in unknown circumstances – probably by Nationalist militia – in the early months of the Spanish civil war in August 1936.

If you read the synopsis of Candide - which I strongly advise if you plan a visit to this new WNO production - you may well wonder how it will be possible to get through so much in so short a time. Voltaire’s novella is itself fairly short, but opera takes more time and songs are songs, not action.

Like certain other opera companies, WNO has leant in recent years towards popular shows of one kind or another. In their case this is not mere pandering to the Valleys coach parties, but a genuine attempt to assert an identity through an exploration of local south Welsh history. 

So why not rewrite The Magic Flute with a new text and a heavily reconstructed plot? After all, the original was just a pantomime, albeit one that embodied one or two big issues of the day (1791), but essentially popular theatre with a text by a well-known comic actor, Emanuel Schikaneder, who sang and acted in the first production.

What, anyway, is The Makropulos Case all about? Is it simply about the horrors of unnatural longevity; or does it expose the limitations of the rational mind confronted by the irrational; is it about love of a distorted ideal, like some updated Hoffmann tale? Or is it simply a well-made play disrupted by theatre of the absurd and turned for good measure into a tragic music drama?

If like me you regard the ending of Janáček’s Jenůfa as one of the most moving scenes in all opera, you might care to consider how it would be possible to deflate it in spite of the best singing imaginable.

If Don Giovanni is not the greatest opera ever written, it’s at least one of the very, very few that even in erratic performances have the capacity to seem it.

It’s easy enough to see the difficulty Madam Butterfly places your thinking director in. I share her pain.

Welcome back, WNO! Yes, emphatically, and with a loud hurrah, which is precisely what the company received, and rightly received, from the somewhat arbitrarily scattered first night Millennium Centre audience for their opening revival of The Barber of Seville.