Once the Proms season is under way, you soon regret dissing the prospectus.

What a fabulous score Pelléas et Mélisande is, and what a joy to be able to hear it in a concert performance without the distraction of some over-sophisticated director’s self-communings. Well, if only.

The fourth Prom of this season featured only two contrasting pieces, pitching the unabashed joyfulness and good humour of Lindberg’s Clarinet Concerto against the angst and defiance of Shostakovich’s “Leningrad” Symphony. It was the former that left the greater impression.

Light-filled Cadogan Hall is hosting the most fascinatingly programmed concerts in a Proms season not otherwise conspicuous for its adventurousness. There's also an honourable pledge to premiere at least one new work by a female composer in each event, honouring the centenary of votes for women.

How do you go about co-ordinating a spectacular like this, the first ever BBC Young Musicians' Prom? With 23 brilliant soloists from clarinettist Michael Collins, not even the winner of the first event 40 years ago, to 16-year-old Lauren Zhang, who stunned us all with her fleet interpretation of Prokofiev's monster Second Piano Concerto this year, commissions or reworkings dealing with batches were the best idea. And all of them worked superbly.

The First Night of the Proms is always a tricky one to programme, bringing together themes of the season, perhaps a new work and, most importantly, a grand finale. This year’s Prom No. 1 ticked all the boxes, and without feeling like pick-n-mix.

Let's be honest, this is the least interesting Proms season on paper for years, at least in terms of adventurous repertoire choices, following on the heels of the best in 2017. Yet in statistical terms it's more comprehensive and multi-media-friendly than ever, starting tonight with a free "Curtain Raiser" performance before the official First Night tomorrow - see David Kettle's choice below – and ending some 75 main Proms and 11 smaller-scale beauties later on 8 September.

Did Simon Rattle's return to the UK as Principal Conductor of the London Symphony Orchestra live up to the hype? Mostly, and when it did, the music-making was superbly alive. But it's vital to observe that another orchestra and chief conductor have been carrying on equally important and sometimes groundbreaking work in the same hall.

What do conductors actually do? It's a question that concert-goers, as well as listeners and viewers of the BBC Proms, often ponder. Conductors may not make a sound, but what they certainly do is put on a performance, the minutiae of which are captured by photographer Chris Christodoulou.

The Last Night of the Proms is always a beautifully choreographed event, and this year’s was no exception. The format changes little, but each year a new selection of works is chosen to fill the slots. The BBC Symphony Orchestra, always the backbone of the season, somehow manages to sound fresh for their final outing.