Yes, Der Jonas was back in our top Lieder hall, and there are few finer places in which to appreciate his remarkable qualities at close quarters, within a warm acoustic magnifying glass. Here, even from the back row, the ambience and sound quality are intimate enough to let us hear a degree of nuance that might not come over to the same extent in a larger, more impersonal space.
An all-Schumann first half from two highly sophisticated German musicians could scarcely be bettered. First of all, the partnership between Kaufmann and Deutsch - Jonas's Lieder Svengali - is something quite exceptional. The voice and the piano are so attuned to one another as to fuse into an indivisible sound, just as an orchestra at its best becomes a single entity. To call Deutsch an accompanist would be not just invidious, but unthinkable. They opened with five of the too-rarely heard Kerner Lieder, topped by 'Stille Tränen' - one of Schumann's most devastating songs, laden with the burdens of depression and intense longing, to say nothing of the glories of its melody. Kaufmann built up to this song as the climax it needs to be - and can hardly help being, given its quality - and unleashed the full power of his exceptional dynamic control.
Some musicians' sounds, whether they are singers, violinists, pianists or anything else, strike us at what certain New Age types would call the Chakra points. The vibrations might strike us primarily at the top of the head, between the eyebrows, around the solar plexus, clean in the stomach or guts, and probably one or two other spots as well - but whichever is the case, it becomes irresistible, setting off goose-bumps in some cases, tears in others, or simply the sense of rising far from everyday predictability into something rare, more sensitive, more extraordinary, that carries us with it to some measure of the beyond. Suffice it to say that this song did that.
Dichterliebe - the ultimate Schumann cycle, to many - is a work much maligned and misinterpreted, despite its phenomenal beauty and the perfectionism of its writing. This is not Schubert; far from the innocence and tragedy of Die schöne Müllerin and the desperation of Winterreise, this is Schumann's take on a love story - won, then lost - as portrayed by the poet Heinrich Heine, master of double-edged irony. Some suggest, oddly, that Schumann ignored Heine's detachment and cynicism. Yet the composer was a highly literary individual, one as adept (or nearly) with words as he was with music, constantly inspired by the poetry and novels of German romanticism at its peak. Kaufmann and Deutsch's Dichterliebe was as much Heine as it was Schumann; Kaufmann's gifts as storyteller were to the fore, backed by the refulgent tones of Deutsch's pianism; this was delicate, close-sketched life-drawing, leaving an emotional impact as subtle as the poet deserves - not head-butting indulgence, but something far more nuanced and colourful.
After the interval came the Wagner Wesendonck Lieder, Kaufmann bringing to the world of solo song the composer with whom he is perhaps most strongly associated. Studies for Tristan? If the third and fifth songs are indeed, Kaufmann will (hopefully) be a Tristan to be reckoned with if/when he gets round to singing the role. For the time being, this was a Wagner incarnation as rare and insightful as the Dichterliebe was to Schumann: a fresh, convincing and unexpected take that made complete musical and poetic sense. These songs, usually larger than life with a mezzo and an orchestra, became intimate and transparent, but in a world of their own, distinct from the Schumann; Kaufmann's perfect Siegmund tone shone at its steel-and-caramel best.
For Liszt's three Petrarch Sonnet settings - oddly, better known in their solo piano versions - Kaufmann turned Italian. Like a religious convert who becomes more zealous than those born into a faith, he can sometimes seem more Italian than the Italians. The sound of the words becomes not only the inspiration for the music - instead, the words are the music, the latter simply a manifestation of a soundworld that is already there in Petrarch's dazzling love poems. If Dichterliebe was a set of keenly observed charcoal sketches, the Sonnets were as gigantic and perfectly wrought as Michelangelo sculptures. Petrarch gives his all in these poems, Liszt follows suit and Kaufmann and Deutsch delivered in kind. One encore - Schumann's 'Mondnacht' - quietened down to an exquisitely controlled, half-lit cantilena in which - as often through the evening - you couldn't help wondering when he manages to breathe.
Most Jonas concerts involve a substantial quantity of encores, but this one didn't. Whether that was because it was a huge programme and he is saving himself for the small matter of Andrea Chénier rehearsals at the ROH, or because the audience mostly didn't stand up, then started to make its way out while he was taking curtain calls, is hard to say. The Wigmore is the finest concert hall in London by a long chalk, but it is a notoriously difficult place in which to get up and yell and cheer, which is what we'd have liked to do and which is what this performance deserved. Not wishing to embarrass my colleagues in Critics' Corner, I resisted the temptation. What a pity one feels one has to. I've seen a place as staid as Vienna's Musikverein go totally, utterly bananas over a Jonas-and-Helmut recital and the fact that that didn't happen in London says more about us than it does about them.