Five seconds of cadenza in Mozart's Exsultate Jubilate would be enough to tell you that there's no more magical stylist among sopranos than Lucy Crowe. In an evening of Allelujas, Glorias and heartfelt Amens beautifully modulated by director of sprightly La Nuova Musica David Bates - henceforth David Peter Bates - hers was the central spot, and you wanted it to go on for ever.

Certain places and times are a vortex of creativity for music, collective fever points of innovation. Paris in the 1920s was one, New York in the 1970s another. Within a few years within a mile or two in Manhattan several music forms were essentially invented that went global – including disco, hip hop, punk and New York’s variant of salsa. It was also when the Minimalism of the likes of Philip Glass and Steve Reich began to find a large audience. As in Paris in the 1920s, uptown mixed it with downtown, the Talking Heads played art galleries and classicists hung out at CBGBs.

Bach: Christmas Oratorio Dunedin Consort/John Butt (Linn)

John Adams, let's face it, was the reason many of us came to hear the St. Lawrence String Quartet. Their performances and recordings as dedicatees of his labyrinthine First String Quartet and Absolute Jest, in which the four players function as soloist with orchestra, led to high hopes for the UK premiere of a second quartet. As it turned out, the yield was smaller beer than expected. What really hit home, for those of us who don't spend as much time as we should with the first and most varied quartet canon in the literature, was an early Haydn masterpiece.

Add three natural trumpets, flawlessly wielded, to chorus and standard period-instrument orchestra, and the seasonal spirit will flow no matter the context. It's true that Bach's Magnificat is not that common a visitor at this time of year - according to the Lutheran church calendar, July is the time to celebrate the pregnant Mary's paean to the Lord, though this spectacular also featured at Christmas in Leipzig with four interpolations - but then its rarity may also be because it challenges all but the best.

Advent is as profitable for choirs as it is tricky to programme. How to delight the palates of carol-hungry audiences while offering them new treats? How to reconcile the fairy-lights of ubiquitous consumption and satiation with the Biblical call of the season as a time to wait, take stock and look forward?

This would have been an intriguing recital at any time. But in the context of Brexit, a programme of songs in a second language, of music expressing composers’ fascination with another country, another landscape, another sound-world, had a poignancy that was hard to ignore.

Praise be to the spell cast by top players on great composers. Without the phenomenon that is Leila Josefowicz, John Adams would never have created his often prolix, fitfully hair-raising Scheherazade.2, more "dramatic symphony" for violin and orchestra than a concerto like his earlier work for the same combination (though that, too, is far from straightforward).

Igor Levit began his recording career with Beethoven’s last three piano sonatas, and his deeply felt, impressively mature readings made his name. Now he is performing a full cycle at the Wigmore Hall, and his take on the earlier sonatas turns out to be very much in the same spirit. There is little sense of Classical reserve in Levit’s early Beethoven; instead everything is performed in an intensely expressive style. It’s impulsive and unpredictable, with huge contrasts of dynamic and tempo. Sometimes the results feel counterintuitive, but they are always compelling.

Second and third times lucky: after the migraine-inducing multimedia overload of Peter Sellars's premiere production of El Niño, first seen in London in 2003 and subsequently excoriated in eloquent prose by the composer himself, John Adams's layered masterpiece has had two further performances here proving that the drama is all in the music. Vladimir Jurowski's 2013 Festival Hall interpretation literally had the edge, in its razor-sharp focus, on last night. But it's always good to see the composer as conductor make light of his rhythmic complexity as he nears his 70th birthday, and we also got to hear three stunning soloists fresh to the work.

As the title implies, there is the natural violence embodied in the storms of an unpredictable phenomenon as well as the ambiguous birth, to pain and to glory, of a special child ("niño" in Spanish). In one of the carefully selected Gospel texts, Joseph asks Mary why she weeps one moment and laughs the next. She tells him: "it is because I see two peoples with my eyes, the one weeping and mourning, the other rejoicing and glad". That duality makes this an apt nativity story to embrace at the end of 2016 (in one of the little spoken prefaces at which he's become so good, Adams imagined Herod today tweeting at 3am his loaded wish to be led to the infant Jesus).

The most vivid bearer of the two sides, apart from the orchestra, is the soprano soloist. The music was written to showcase Dawn Upshaw's girl-next-door radiance as Mary up to the birth and her new-found (in 2000) ability to twist the expressive knife in the most shattering and musically complex number of Part Two, the climactic setting of poet Rosario Castellanos's bitterly ironic "Memorial de Tlatelolco", Adams's "slaughter of the innocents" enshrined in the hushed-up 1968 massacre of Mexican students. If Joélle Harvey (pictured above by Arielle Doneson) couldn't quite emulate Upshaw's cutting edge here, her devotion and emotion were total, and her youthful luminescence always shone (though I'm not quite sure why the three soloists needed the same amplification as the countertenor trio; except in big ensembles, Adams always keeps the orchestra down for them).

Castellanos is to El Niño what Wilfred Owen is to Britten's War Requiem, giving, along with fellow Mexican Sor Juana Inés de la Cruz, the Chilean Gabriela Mistral and Hildegard of Bingen, a much-needed feminine perspective to the wonder and terror of childbirth. She's a poet I'm immensely grateful to Adams and Sellars, his anthologist, for letting me discover. Mezzo Jennifer Johnson Cano couldn't quite banish memories of the late Lorraine Hunt Lieberson's superior sinuousness in the wonderful setting of "La Anunciación", Castellanos's vital female take on the mystery of conception and pregnancy, but later brought tears to the eyes with her part in the duet "Se habla de Gabriel" ("Speaking of Gabriel"). Hers is a magnificent instrument, as is the revelatory bass-baritone of Davóne Tines (pictured below): memorable in Joseph's anguished reproach "Mary, why did you do this?", shatteringly good in the high-lying ululations of "Shake the heavens", and deeply moving as Joseph sees everything in mankind and nature still at the moment of birth.

Adams has a dependable group in countertenors Daniel Bubeck, Brian Cummings and Nathan Medley – memorable contributors to El Niño's even more complex if not quite as symmetrically perfect sequel The Gospel According to the Other Mary. At the one point where they step out as soloist Kings, Medley was quietly remarkable in the easeful switch between natural and falsetto registers. Adams's careful selection of instrumental colours to match brought forward amazingly expressive work from the LSO wind, while the brass helped to underline the mounting tension of Part Two and the violent snaps when the storm breaks. A professional choir might have given us more focus in quieter passages, but the London Symphony Chorus offered block shock in the apocalyptic moments. Who can ever forget, once heard, massed voices and snapping orchestra in the downward bending of "For with God no thing shall be impossible" from its D major brilliance?

And the London Youth Choir (all girls, from what I could see) played its part in the final miracle with real finesse. All that's been lacking from the richly shifting canvas have been the multiple voices of children. At the point in the numinous setting of the Gospel of Pseudo-Matthew, where the infant Jesus commands a palm tree to bend down its fruit for the refreshment of the refugee family and fountains pour out from the roots – eerie ascents to match the downward cascades from heaven of Part One – the young intone Castellanos's most simple and beautiful poem, "Una Palmera", ending with the simple word – voices in thirds, finally accompanied by one guitar only – "poesía" ("poetry"). It's the benediction we all need towards the end of a terrible year.

• Second LSO concert conducted by John Adams on Thursday 8 December
• David Nice's blog on further background to El Niño
• Read more classical reviews on theartsdesk

Next page: watch Davóne Tines sing 'Ol' Man River'