As the name suggests, the Schoenberg Quartet has made a speciality out of the music of the Second Viennese School. It has recorded the quartets of Schoenberg, Berg and Webern, as well as Zemlinsky, for Chandos, and now is spreading its net wider, to two composers on the edge of the central European tradition in the first quarter of the 20th century. The quartets by Janacek and Szymanowski are almost exactly contemporary; Szymanowski composed his First in 1917 and his Second 10 years later, while Janacek's two date from 1923 and 1928. The quartet plays them chronologically, creating a telling sequence of styles that revisits elements of modernism from different perspectives. Szymanowski's love of the exotic and for chromatically inflected harmony to evoke that world brings him closer to that tradition than Janacek's terse and personal musical language, and, perhaps because of that, the Schoenberg Quartet's performances of the Szymanowski works, wonderfully assured and technically commanding, are far more convincing than their Janacek, in which the playing seems much more detached and impersonal.