They’ve done it in a boat and a barn, a former poorhouse and even a tunnel shaft, and now Pop-Up Opera bring their latest production to a museum. Bethnal Green’s 19^th-century Museum of Childhood provides an evocative frame for Engelbert Humperdinck’s Hansel and Gretel, its glass display cases and carefully glossed and labelled toys setting the tone for a production that takes a wry, curatorial approach to its material.

This week is Prison Week in the Christian Churches, and it would be nice, if fanciful, to think that WNO programmed their revival of Janáček’s From the House of the Dead with that in mind.

There's something here for everyone, as a "roll up!" slogan for one of the greatest shows in town might put it.

Baroque opera is always a challenge to stage, and Rameau’s Dardanus is no exception. In its original form, the story, of love in times of war, was infused with allegorical characters and mythological scenes. It flopped, and so Rameau and a new librettist thoroughly revised the work to focus more on the human drama. But even with the changes, the plot is still slow and nebulous, and ends about half an hour before the opera does.

About Khovanshchina I once had serious doubts. Leaving aside its unfinished condition, it always struck me as what Wagnerians would call a bleeding chunk of history, unstructured, confused, over-researched and dramaturgically obscure.

Pairing Mascagni’s Cavalleria Rusticana with Gilbert and Sullivan’s Trial by Jury makes for a pleasingly schizoid evening in the latest of Opera North's The Little Greats series. Mascagni’s crashing final chords precede a longish interval, and when you re-enter the auditorium it’s not just the set that’s changed, but much of the audience.

It’s official: Romanian master George Enescu’s four-act Greek epic lives and breathes as a work of transcendent genius. It took last year’s Royal Opera production to lead us further along the path established by the magnificent EMI studio recording with José van Dam as protagonist.

Has Hackney ever seen or heard such a spectacle – a full Hungarian orchestra taking up most of the Empire stalls to complete the semi-circle of a relatively empty stage? And did enough of London get to hear about it? I certainly wouldn’t have done had it not been for a chance conversation with Péter Eötvös, a leading figure in Hungary’s beleaguered but still thriving cultural life, in an interval of the Budapest Ring.

For his monster concerts in 1840s Paris, Berlioz took pride in assembling and marshalling a "great beast of an orchestra". At the Barbican on Sunday night, the LSO filled the stage and fitted the bill.

The first two one-acters in Opera North’s season called The Little Greats were unveiled on Saturday. There are six in all, scheduled on a mix-and-match basis so Leeds opera-goers can choose their own tapas menu: grab one show, choose from various pairs, or even try three on a Saturday (including a matinee) if you want to.