Quietly frenetic textures act as skein-like support for more forthright material in Cowie’s First Quartet, Dungeness Nocturnes (1969), while the Second, Crystal Dances (1977), is dazzlingly faceted and the Sixth, The Four Winds (2012), reflects upon the winds and seasons. The Kreutzer Quartet’s leader, Peter Sheppard Skærved, give the virtuoso solo violin piece GAD (2017), written during an anxiety episode yet often surprisingly playful.