If you only ever listened to opera from recordings, you might overlook the fact that it's as much theatre as it is music. In the opera house on the night, it's all well and good for the orchestra to play the score and the singers to sing their parts, but on top of that you have to allow for costume changes, move the scenery, adjust the lighting and make sure you get all the right people on and off stage at the appropriate moments. It's what makes opera the living, breathing, sometimes splendidly chaotic spectacle it is.

This was smart programming. The final night of London's Lufthansa Festival of Baroque Music presented the forces of the Göttingen Ha(e)ndel Festival.

Jean-Philippe Rameau, the most radical and inventive of French composers before Berlioz, died in Paris 250 years ago this September. 16 years later a gem among theatres opened its doors for the first time with a long evening’s entertainment including Racine’s Athalie, supported by an incidental score from the resident music master Franz Beck.

Oslo is a winter wonderland, and adults seem to be outnumbered by children, flocking from all over Norway to Disney on Ice. It’s the deep snow and the silence in pockets of the city rather than the kids which make me wonder if anyone has set Handel’s Alcina in the icy lair of C S Lewis’s White Witch, with hero Ruggiero as Edmund fed Turkish delight from the magic phial. There's even a captive lion. Francesco Negrin’s straightforwardly magical production - look, no metatext!

The Barbican’s ongoing season of baroque operas and oratorios has been a mixed bag.  Most recently The Sixteen’s Jephtha was a rather lacklustre affair, leaving me nervous of committing to the many hours of Handel’s beautiful (but protracted) Theodora. But I needn’t have worried. Harry Bicket and The English Concert gave this late work all the pep and personality that was so lacking last week, driving it through its rather uneven acts to a conclusion of sudden pathos and beauty.

Handel’s “little opera”, as he called Acis and Galatea when he was composing it in 1718, probably survived while his true, full-length operas vanished from sight precisely because it was little, compact and manageable, like Purcell’s Dido or Pergolesi’s Serva padrona. But little isn’t the same as easy; and these days a production like the one with which Mid Wales Opera is celebrating its 25^th anniversary can find itself asking more questions than it can readily answer

A question flitted through my mind in advance. Was I down to review La Nuova Musica’s modern premiere of Conti’s baroque opera Issipile, or was it Issipile’s opera Conti?  To many music lovers, even those well grounded in history, both possibilities must be equally plausible.

The great Marilyn Horne used to joke that she was going to release an album entitled “Chestnuts for Chest Nuts”. She never did, but that leaves the door wide open for Sonia Prina whose dark, thrillingly low sound marks her out as the real deal, a genuine contralto. But the excitement of Prina in performance isn’t just about her extraordinary skill at using her unusual range.

There had been a buzz of anticipation about this late-night Prom by Nigel Kennedy, the Palestine Strings and his Orchestra of Life, and it was completely sold out. After a long association with Vivaldi's Four Seasons, and 2.4 million sales of the 1989 album, Nigel Kennedy doesn't seek or need either forgiveness or permission to open the doors of this music to other tendencies.

Bach for breakfast, lunch and supper. That in essence was what yesterday's Bach Marathon was about. You can do that with Bach - have him flowing from the taps. Nothing new in this for those of us who experienced the Bach Christmas a few years back on Radio Three, when every note was piped over the airwaves for breakfast, lunch and supper for 10 days solid. Nothing very marathon-like about any of it, though, either. The day’s performances couldn’t have been further from a challenge to sit through or listen to.