It is hard to envisage a more enticing prospect: Shostakovich’s densely woven String Quartet No 2 and his deceptively backward-looking Piano Quintet, performed by the stellar Takács Quartet and Marc-André Hamelin, generously notated by David Fanning, and lovingly recorded by Hyperion’s Simon Eadon and Andrew Keener team. Seventy minutes of post-Revolutionary Russian ecstasy.