Whenever the Borodin Quartet notches up an anniversary, so too does its cellist (and so in 2005, while the ensemble marks 60 years as what the Russians call the Quartet named Borodin , we also toast Valentin Berlinsky on his 80th birthday). This is very much as it should be: Valentin Berlinsky is both patriarch and soul of the quartet. As anchorman throughout of the group which turned to the Soviet authorities for its present name in 1955, Berlinsky has lived through many changes of personnel in the early years, guided the quartet through difficult times at home and on countless tours, and still imparts his ineffably cultured tones to its latest incarnation.

“This is not at all what I wrote, but play it like this. Do play it this way!” exclaimed Dmitri Shostakovich after Yudina performed the freshly written 24 Preludes and Fugues. This exclamation contains the key to understanding of Maria Yudina’s performing art – a controversial and disputable one that left a profound imprint on the cultural environment of the twentieth century. The 10-album set is the biggest part of Maria Yudina’s surviving studio and concert recordings from the Melodiya archive made between 1948 and 1969.

Chailly has radically rethought his approach to these works, re-examining the scores and returning to the recorded interpretations of a generation of conductors alive during Brahms lifetime, principally Felix Weingartner and one of his Gewandhaus predecessors Bruno Walter.

Karl Amadeus Hartmanns work is very difficult to attribute to any particular compositional school. Although he was not a revolutionist in terms of notation or performance forces, he was able to creatively subordinate all the achievements of modern musical language to innovative formal approaches. Hartmann wrote with extraordinary verve, creating artistic phrases with a broad ambitus, at the same time he could masterfully juggle short motifs, subjecting them to elaborate variational and contrapuntal transformations. In terms of harmonics, Hartmanns music is tonal, though strongly chromatic, which deprives the listener of a secure sense of anchoring in a specific key.

With this 7th symphony concert conducted by Zubin Mehta featuring the baritone Thomas Quasthoff, the Staatskapelle Dresden initiated its Mahler celebrations due to the composer’s 150th birthday in 2010. Mehta has been one of the outstanding personalities of the international music scene for years. Already at the age of 25 he conducted the Berlin and Vienna Philharmonic as well as the Israel Philharmonic Orchestra. Since 1994 he has been closely associated with the Staatskapelle Dresden. Thomas Quasthoff is one of the most important and versatile singer of our time. Three of his CD recordings have been awarded with the Grammy.

With this 7th symphony concert conducted by Zubin Mehta featuring the baritone Thomas Quasthoff, the Staatskapelle Dresden initiated its Mahler celebrations due to the composer’s 150th birthday in 2010. Mehta has been one of the outstanding personalities of the international music scene for years. Already at the age of 25 he conducted the Berlin and Vienna Philharmonic as well as the Israel Philharmonic Orchestra. Since 1994 he has been closely associated with the Staatskapelle Dresden. Thomas Quasthoff is one of the most important and versatile singer of our time. Three of his CD recordings have been awarded with the Grammy.

Soprano Barbara Hannigan has become something of a cult favorite with her deep dives into specific and unusual repertories. Her self-presentation in concert is unorthodox and marked by full-scale efforts to communicate the essence of the music at hand, in works ranging from Berio to Gershwin. So it is with this set of songs from the decade and a half on either side of 1900 in Vienna. The enjoyment begins with the physically passionate cover, an example of her way of personifying the music's spirit. Hannigan's is an utterly distinctive voice, edgy and coruscating, and she knows how to tone down her considerable virtuosic powers to the dimensions of the music, such as that here, intended for small rooms.

It is almost exactly a quarter of a century since Pierre Boulez recorded his complete Webern survey. This new collection, apart from being useful for anyone who doesn't want to buy three whole CDs of Webern, offers an interesting insight into how Boulez's way with a composer probably more central to him than any other has changed. For a start he gives him a little more time: most of the pieces here are slightly but significantly slower than they were in 1970. This allows lines to be more subtly moulded, phrases to acquire a touch more poise. This is not to say that Boulez has softened and now phrases Webern as though he were Chopin, but grace and even wit (the second movement of the Quartet) are now noticeable alongside his customary precision. The Ensemble InterContemporain have been playing these pieces constantly since they were first founded, and it shows in the absolute assurance of their performances.

String quartet fans will relish this excellent release from ECM. Although the Shostakovich 8th is one of the most over-recorded pieces in the string quartet literature, the performance here is worth having, and is combined with a somewhat familiar but not as widely recorded piece by Webern (for those who might be afraid to listen to anything by Webern, let me assure you that this is a most lovely, lyrical, hauntingly beautiful work, not at all daunting) and a quartet by a composer that will be unfamiliar to most, Emil Burian (1904-1959), whose String Quartet No. 4 is a haunting piece that makes for an attractive finish for this fine CD by the Rosamunde Quartet. The sound quality is rich and radiant in the best ECM tradition.

Recordings that include strings quartets by Schoenberg, Berg, and Webern are common, but an album that includes music for quartet and voice by each of them is a rarity. Schoenberg's Second String Quartet, with a part for soprano in its third and fourth movements, is standard repertoire, but the version of Berg's Lyric Suite with a vocal part in the final movement is highly unusual, and Webern's bagatelle with voice, an unpublished movement apparently once intended to be part of the Six Bagatelles, Op. 9, receives what is probably its first recording. Novelty aside, the high standards of these performances make this a formidable release. Founded just before the turn of the millennium, Quatuor Diotima plays with the assurance and mutual understanding of a seasoned ensemble. The quartet has a lean, clean sound and the ensemble is immaculate, playing with exquisite expressiveness, an ideal combination for this repertoire.

he players take an appropriately spacious view of the Sunrise Quartet's serene opening bars, and provide a deeply felt account of the wonderful F sharp major slow movement from Op. 76/5. They offer, too, an intensely dramatic performance of the first movement of the D minor Fifths Quartet, and manage to find a striking change of colour for the minor sections of Op. 76/5's opening movement.