Beethoven’s ten violin sonatas span the period from 1797-1812, and the G major work ending the series (which he evidently revised prior to its publication in 1816) came as long after the Kreutzer as the difference in opus numbers suggests – the nine intervening years saw the appearance of Symphonies Nos. 4-8 and much else. Stylistically, this last sonata looks forward to his third period and its lyricism differs markedly from the fire of its predecessor, while the other eight are youthfully confident; it is perhaps significant that only two of the whole series are in a minor key.

Gustavo Dudamel's historic Mahler Project was a highlight of music-making in early 2012, for he led the Los Angeles Philharmonic and the Simón Bolívar Symphony Orchestra of Venezuela in Gustav Mahler's nine completed symphonies, in a series of critically acclaimed concerts. The first CD to be issued from the marathon event is Deutsche Grammophon's 2013 release of the Symphony No. 9 in D major, one of the most challenging of Mahler's works to interpret and one of the most satisfying to hear when it is played with insight and originality.

This Deutsche Grammophon release captures an exceptional group of live performances from New York's Alice Tully Hall in early 2015. It was recorded well, mastered, and, remarkably, on sale by the end of April of that year. That's what the old major labels need more of: the agility to spot something good that's happening and follow through on it. The listener's eye may be drawn first to the name of Mahler on an album of piano quartets.

John Adams' The Gospel According to the Other Mary, first performed in 2012 in Los Angeles, is something of an expansion on the composer's El Niño, a Passion story adorned with a variety of contemporary themes and musical materials. Like the earlier work, it features a libretto by longtime Adams collaborator Peter Sellars, and it may be sung on-stage as an oratorio or presented as an opera.

The Art of Fugue was J.S. Bach's final composition which many justifiably regard as the apotheosis of his legacy. This arrangement by the Musica Antiqua Koln is one of the most austere chamber versions on CD with nearly half of the movements interspersed evenly throughout the performance played by only one or two instrumentalists.

Angela Hewitt is a highly esteemed pianist, particularly noted as a Bach performer, but accomplished in an exceptionally large repertory that embraces all eras of keyboard music. The daughter of an organist, Hewitt began to study piano at age three, making a public debut at the age of four, winning a scholarship at six, and eventually adding studies in ballet, singing, violin, and recorder.

Anne-Sophie Mutter has always been a superlative violinist with an imposing sound and technique that command attention. As she has progressed her career she has shown a growing reluctance to restrain her interpretations, and this 2008 Mendelssohn recording is evidence that as she progresses in her now-mature career she is becoming more and more assertive in that direction.

Polish pianist Krystian Zimerman has been something of an anti-Gould, avoiding recordings in favor of live performances. This recording of Schubert's last two piano sonatas was done with a custom keyboard with which, Zimerman says, "the hammer strikes a different point of the string, enhancing its ability to sustain a singing sound – though it does also set up different overtones and the piano might sound strangely tuned."

In the 41 - year gap between these two sonatas Fauré, increasingly beset by deafness, withdrew into a more private, recondite world all his own. The Second, in consequence, has never enjoyed the popularity of the First—and in fact was conspicuous by its absence from the CD catalogue until this welcome new release. Collectors may recall that when Lydia Mordkovitch and Gerhard Oppitz recorded the First for Chandos they preferred to couple it with Richard Strauss's early Sonata in E flat. Comparison of the two teams in the A major Sonata, Op. 13, leaves me in no doubt that the newcomers would be my first choice. In saying that, I don't want to underestimate Mordkovitch. But with her fine-spun, silken tone and sensitively tapered phrasing she is far too often overpowered by Oppitz, who in the resonant acoustic of St Luke's Church, Chelsea, emerges not only too loud but also rather too often the victim of his own over-generously used right pedal. The Cologne venue accorded to Mintz and Bronfman is kinder: though anything but timid Bronfman preserves far greater textural clarity, and never allows his piano to outweigh Mintz's violin unless at the composer's own behest.(Gramophone, 1/1988)

Nemanja Radulovic takes on Tchaikovsky for his second Deutsche Grammophon release, promising a personal approach to one of the warhorses of the repertory, the Violin Concerto in D major, Op. 35. The album's most unusual feature is the full-scale reworking of the Variations on a Rococo Theme, Op. 33, recast here for viola, string ensemble, and piano by Radulovic collaborator Yvan Cassar and played by the violinist's (or here, violist's) own Double Sens ensemble.

Recorded between 1989 and 2004, the Hagen Quartet's recordings of Mozart's complete music for string quartet is clearly the finest set of the works released in the early digital age. For one thing, because the collection includes not only the 23 canonical string quartets but also the three early Divertimenti for string quartet, the five Fugues from Bach's Well-Tempered Clavier arranged by Mozart, and the late Adagio and Fugue in C minor, their set really is the complete music for string quartet.

The venerable pianist of the Beaux Arts Trio joins the Emerson Quartet for two memorable performances. To the uncommon clarity and rhythmic drive of the string players, Menahem Pressler adds some of his own expansive personality. The mix works beautifully. You can hear every note in the scores, and everything is played with great expression and enough rhythmic tension to keep the music flowing.

Five Piano Concertos and the Piano Sonata No. 32, opus 111, recorded in stereo in 1962 and 1964, respectively, by Wilhelm Kempff [1895-1991] and the Berlin Philharmonic Orchestra under Ferdinand Leitner [1912-96]. The sonata, the composer’s last, is certainly more than a mere filler, from the opening hesitancy of the ‘Allegro con brio ed appassionato’ to the extended closing section of the second movement.

As a debut recording on Deutsche Grammophon, Lisa Batiashvili's Echoes of Time works reasonably well because it demonstrates a seriousness of purpose that any rising violinist would wish to convey and provides a showcase for her virtuosity. Dmitry Shostakovich's Violin Concerto No. 1 sets a keynote of gravitas and introduces us to the theme of the album, which is that the works presented here were influenced in one way or another by the culture and politics of the Soviet Union.