There's now something of a gala atmosphere when the Orchestra of the Royal Opera House takes to the Covent Garden stage with its music director Antonio Pappano. Admittedly some of the players are not the same as when he took up his tenure, but the core relationship of 17 years - with the contract now extended to at least the end of the 2022/23 season - results in collegial music-making at an intense level which most orchestras can only dream about.

When a pianist directs from the keyboard, the result can be a sedate affair: a matter of minimalist time-keeping while the soloist shows his or her fancy moves. Not so with Dame Mitsuko Uchida and her long-term partners, the Mahler Chamber Orchestra. Clad in a sort of blue magician’s gown over severe black, Uchida – who has just turned 70 – stood to conduct, vigorously, the opening passages of last night’s two Mozart concertos at the Royal Festival Hall.

Pianists most often cite Radu Lupu alongside Martha Argerich and Grigory Sokolov as the greatest. So it was hardly surprising to see so many top musicians in a packed audience, buzzing with expectation for the 73-year-old Romanian's most recent UK appearance with a conductor he respects, Paavo Järvi. Lupu appeared at Steven Isserlis's 60th birthday event at the Wigmore towards the end of last year, but before that hasn't been seen here since 2014.

Practitioners of musical authenticity and scholarly research, so guarded and protective of their territory in the early days, now like to spread the love around.

In the fourth performance of their UK tour, with Vassily Sinaisky replacing an indisposed Yuri Temirkanov, the St Petersburg Philharmonic gave a warm and rousing performance at Symphony Hall, Birmingham.

Well, I didn’t expect that – and judging from the way the rest of the audience reacted, nor did anyone else. After Cristian Măcelaru slammed the City of Birmingham Symphony Orchestra full speed into the final chord of Vaughan Williams’s Fourth Symphony, there was a stunned silence, broken by gasps. And then cheers, as a smiling, visibly drained Măcelaru gestured back at the orchestra with both thumbs up.

There is no doubting Diana Damrau’s star power. She is not a demonstrative performer, and her voice is small, but the sheer character of her tone, and the passion she invests, make every line special. She is not one to over-sentimentalise either, so there was never any danger of Strauss’s Four Last Songs turning saccharine here.

No one worried about melting icecaps and homeless penguins when Vaughan Williams wrote his score for the film Scott of the Antarctic around 70 years ago. (They do now, as a new music theatre piece by Laura Bowler to be premiered by Manchester Camerata next week will show). It was the challenge of the frozen continent and a heroic effort to reach its heart that counted.

The Endellion Quartet first rehearsed on 20 January 1979, deep in the throes of Britain’s so-called “Winter of Discontent”. That longevity – with three of the original players still on the team after four decades – makes the acclaimed ensemble roughly as old as Spandau Ballet, and senior to REM.

In contrast to a classic film soundtrack played live with the film, the idea in "symphonic cinema" is that the music, and its interpretation, come first. So the conductor is literally setting the pace, and to some extent the atmosphere, while the film is controlled in real time by an "image soloist", and the visuals follow the music’s lead rather than the other way round.