String Quartet No. 21 in D major, K 575
String Quartet No. 22 in B flat major, K 589
String Quartet No. 23 in F major, K 590

After their exciting interpretations of Haydn, Beethoven and Schubert, the Chiaroscuro Quartet now turns to Mozart’s Prussian Quartets, his last compositions for this formation. These quartets were written for Friedrich Wilhelm II, King of Prussia and amateur cellist, and offer that instrument an unusually prominent role. The first of the three was composed fairly quickly, in June 1789, but the next two were not completed until the following year, and in the end Mozart’s plan for a set of six came to nothing.

The writing of quartets was never an easy matter for Mozart. However, one would hardly guess that the Prussian quartets were the product of ‘exhausting labour’ (his own words), such is their beguiling ease of workmanship. No. 21 in D major stands out as one of the most melodious chamber compositions of Mozart’s mature period, emanating something of the sensual Mediterranean warmth of the opera Cosi fan tutte composed shortly afterwards. No. 22 in B flat major also emphasises the importance of melody and gives the ‘royal’ cello some beautiful solos. As for No. 23 in F major, while it is tempting to hear a melancholy, autumnal quality in Mozart’s later works, there is, however, no sense of farewell in this his final string quartet: the spirit of Haydn is everywhere, especially in the finale with its effects borrowed from Hungarian folklore.

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Recording: 23rd 27th November 2020 at the Britten Studio, Snape Maltings, UK. Instrumentarium: Violin by Anselmo Bellosio c. 1780 (Ibragimova); Violin by Andrea Amati 1570 (Benedí); Viola by Willems, c. 1700 (Hörnlund); Cello by Carlo Tononi 1720 (Thirion