Brautigam Mozart

The sixth disc in this highly acclaimed series combine two works in which Mozart's powers as an orchestrator come to the fore. Concerto No. 18 in B flat major, K 456, is sometimes referred to as one of the composers military concertos on the basis of the march-like main theme of the first movement. But more striking is the variety of ways that Mozart employs the various groups of instruments: strings, wind instruments and, of course, the piano. This aspect certainly didn't pass unnoticed by a listener as initiated as Mozart's father Leopold: in a letter to his daughter Nannerl he described how his enjoyment of the orchestral interplay had brought tears to his eyes.

Composed in 1786, the Piano Concertos Nos 24 in C minor and 25 in C major are regarded as two of Mozart's finest achievements in the genre. Both are large-scale works, with durations of more than 25 minutes each – the C major concerto is in fact one of the most expansive of all classical piano concertos, rivalling Beethoven’s fifth concerto. Their grandeur immediately made them popular fare in the concert hall – Mendelssohn, for instance, had No.24 in his repertoire through the 1820s and 1830s – and new recordings appear regularly. It is nevertheless relatively rare to hear them performed on original instruments and with orchestral forces corresponding to what Mozart himself would have been familiar with.

In 1819 the Viennese music publisher and composer Anton Diabelli sent a short waltz to a long list of composers. These included Schubert, Hummel, a very young Franz Liszt and, as the most prominent composer of the time, naturally Beethoven. Diabelli was proposing to compile an anthology of variations on his own waltz, one from each composer. Beethoven responded in a characteristic manner: first there was nothing, and then there was nothing … and then, in 1823, there was an entire, and monumental, set of no less than thirty-three variations.

Behind every Mozart solo piano composition is the human voice, and many interpreters understandably build their interpretations from the melody line down. By contrast, fortepianist Andreas Staier generates rhythmic and dramatic momentum by letting his left hand lead, so to speak. His firm, sharply delineated bass lines in the C minor sonata's outer movements and the E-flat sonata's Allegro finale evoke a symphonic rather than operatic aura that proves far more stimulating than Paul Badura-Skoda's equally rigorous yet less vibrant fortepiano traversals.