Described as a "performer-led re-devising’"of Mozart’s 1787 opera Don Giovanni - a tale of an arrogant and ruthless lothario who seduced countess women - Don Jo certainly played around with many of the norms we encounter in both sexual relationships and in the operatic genre.

Can we go back to an older Glyndebourne-at-the-Proms vintage, where the chosen production was merely sketched out with variations suited to the venue, and performed in whatever evening dress might be appropriate?

Not every Prom has to push musical boundaries or bust concert conventions. On the face of it, last night’s programme from the BBC National Orchestra of Wales (and National Chorus of Wales) stuck to a thoroughly traditional recipe. Two familiar 19th-century orchestral warhorses cantered out for the first half, followed by a beloved choral blockbuster delivered by massive forces who engendered a big, hearty, hall-filling – dare I say Victorian? – sound.

Die Zauberflöte rarely attracts the plain cooks of the operatic world. Mozart’s farewell opera chucks so many highly-spiced ingredients into its outlandish pot – pantomime and parable, burlesque and ritual – that many productions opt for one show-off recipe that promises to unify all its flavours into a single, spectacular dish.

One of the features of the converted barn that forms the theatre at Longborough is a trio of statues that tops the front pediment of the building: Wagner, flanked by Verdi on the right and Mozart on the left. No one could question Wagner: Longborough has done him proud.

Seven European cities, seven works: from an eight-year-old's First Symphony composed in what is now Ebury Street to the towering concert aria for Josepha Dushchek of Prague's Villa Bertramka, Ian Page's latest Mozart cornucopia took us on a rich and at times startling journey, a testament - as Page wrote eloquently yesterday in his article for The Arts Desk - to the abiding need for freedom of movement in a human being's developm

It wasn’t really the orchestra’s night.  Nor the soloists'. Nor, even, the conductor's. The Royal Liverpool Philharmonic Choir totally stole the show, well surpassing the incredibly high standards which they already regularly attain and performing not as a large symphonic chorus but as a something akin to one of the highly specialist choirs with which this country is blessed.

Productions of The Marriage of Figaro tend to press their thumbs on the comic or tragic side of the scales that hover so evenly throughout Mozart’s inexhaustible work. Director Martin Lloyd-Evans mostly favoured a darker interpretation at The Grange Festival, despite long stretches of niftily managed funny business.

Playing with such energy, such synergy and such general camaraderie at the start of a tour must surely pave the way for even greater things to come. The Scottish Chamber Orchestra with Nicola Benedetti kicked off their European tour at Birmingham Town Hall, ahead of performances in Denmark, Switzerland and Germany.