Arranging and unearthing are key words here. Following two outstanding Brahms discs for Onyx in a similar mixed-repertoire format, virtuoso violist Maxim Rysanov and friends have turned to Beethoven: two unfamiliar early duo works from the 1790s, the Serenade Op 8 for viola and piano reworked by the legendary William Primrose and the Trio Op 11 arranged by Rysanov for viola (instead of clarinet), cello and piano. Cellist Kristine Blaumane and pianist Jacob Katsnelson give a warm account of the Cello Sonata No 5 written for – well, why not? – cello and piano. Hard though it might be to sum up this assortment in a simple category, it is chamber music playing of intimacy, range and flair.