For seasonal fare that’s also profound, few pre-Christmas weekends in London can ever have been richer than this one. Hearts battered by John Adams’ nativity oratorio El Niño last night, one hoped for more soothing medicine this afternoon in the naïve and sentimental music of Berlioz’s sacred trilogy, first performed some 145 years earlier.

Three cheers for good old Albert, natural laugh-out-loud heir of Verdi’s Falstaff and Puccini’s Gianni Schicchi, and the best possible way to mark creator Britten’s being one hundred years and one day old. Youth has its day in both those earlier masterpieces, but the lovers are subordinate to the middle-aged comic protagonists. Here they're the equals of a hero who is no scamster but a shy grocer’s boy who busts out drinking and worse to loosen the apron strings of a prim community.

How many reviews of War Requiem do you want to read in Britten centenary year? This is theartsdesk’s fourth, and my second – simply because though I reckon one live performance every five years is enough, Rattle’s much-anticipated Berlin Philharmonic interpretation fell almost entirely flat, and I wanted to hear at least one good enough to move me to tears.

This was Sakari Oramo's first concert with the BBC Symphony Orchestra since taking over as chief conductor. Of course he knows the orchestra well already, but it was important to make this a good ’un, and so it was.

Back at the Barbican for a new season after a Far Eastern tour, the BBC Symphony Orchestra returned to pull off a characteristic stunt, a generous four-work programme featuring at least one piece surely no-one in the audience woud have heard live before. This time, the first quarter belonged exclusively to the unaccompanied BBC Singers in one of the most demanding sets of the choral repertoire. After which the seemingly humble but dogged and vivacious Marc Minkowski helped create orchestral magic of three very different kinds, defining French composers’ infinite capacity for play.

As it came to pass, Marin Alsop’s nationality was rather more of a factor than her gender on this historic Last Night of the Proms – but her deft put-down of remarks made only the week before (pace Petrenko) suggested that it might take a little more time (it’s only 2013, for heaven’s sake) for that glass ceiling truly to come crashing down and for her and others like her to be regarded as simply “conductors”.

Concert programmes are designed to make the mind flexible with constant contrasts. More often, though, the great is the enemy of the good-ish. Last night an Elgar masterpiece was always going to overshadow its second-half predecessor, a hazily pleasant piece for strings and – novelty value – six harps by the colleague Elgar called “dear old Gran”, candidate for this Proms season's resuscitation attempt Granville Bantock. And earlier, Sibelius bopped a BBC commission on the head with supernatural noises that could have been conjured yesterday.

You wait years for a live performance to test whether Tippett’s Second Symphony is a masterpiece, and then two come along within six months. Both are due to the missionary zeal of the BBC Symphony Orchestra management, determined to give an overshadowed English composer a voice in Britten centenary year. But while Martyn Brabbins convinced me totally of the Second’s dynamic journey back in April at the Barbican, Oliver Knussen caught its rarefied sounds but not always its progressive sense.

Such has been the justifiable flow of superlatives this week about the Berlin Staatskapelle's Ring conducted by Barenboim, the centrepiece of the BBC Proms' Wagner bicentenary celebration, it would have been easy to forget that the 2013 Proms season contains not just those four, but seven complete Wagner operas.

By the time silence descends on the Royal Albert Hall at five o’clock in the afternoon for a performance that will end six hours later, Semyon Bychkov will have been rehearsing for 60 hours. It breaks down into four days of orchestra readings, with tutti and sectional sessions for each act, then two days of the singers and a pianist, followed by six days of everybody together. And all for one performance of Tristan und Isolde with the BBC Symphony Orchestra.