Who would have thought that in a comic opera by Donizetti, least orchestra-indulgent of Italian composers, the conductor could be paramount?

This new production, Opera North’s first, sounds fantastic – Tchaikovsky’s lurid colours are brilliantly painted, and the compact dimensions of the Grand Theatre mean that the big orchestral tuttis have a devastating impact. Richard Farnes’s conducting is faultless – this music really swoons, screams and seduces. And despite the occasionally overpowering volume, Farnes never lets his orchestral playing drown out the singers.

Whether or not we believe Wagner’s retrospective rebranding of the opera as a prototype music-drama, “a complete, unbroken web”, Der Fliegende Holländer reliably makes for a vivid evening’s entertainment. Which makes it all the more strange that this is only the work’s third outing at the Royal Opera in almost 20 years.

“Morning at the airfield: King Xerxes admires the new Spitfire, which he hopes will transform his continental campaign.” If the title – emphatically Xerxes rather than Serse – hadn’t already given the game away, the synopsis for English Touring Opera’s newest Handel production makes it quite clear that we’re not in Kansas (or Italy, or Persia for that matter) any more. The scene is the Battle of Britain and ruler Xerxes is doing his best impersonation of one of those dashing young men in his flying machine.

Katie Mitchell’s production of what many regard as Janáček’s greatest opera began life 10 years ago on the stage of Cardiff’s New Theatre; and there are times in this revival when you feel its director Robin Tebbutt’s yearning to be back in that constricted environment, so much better suited to the stifling world which destroys the work’s repressed, self-loathing heroine.

Fiona Shaw's new production of The Marriage of Figaro for the ENO focuses on the theme of entrapment. Her first victim? A noisy bee. Don Basilio finds himself so harassed by its buzzing, he confines it to the body of a harpsichord. Magically, a few seconds later, the low hum reappears - on strings and bassoons.

Revived with almost indecent haste, Jo Davies’s 2010 production of Gilbert and Sullivan’s Ruddigore now feels even more polished and slick. Slickness is not a derogatory term here; this staging hits the spot in pretty much every way – musically, dramatically and visually.