Their strong identification with the [Barber] Sonata is immediately evident in this recording. They bring a remarkable unanimity of ensemble to the dialogue and make light work of some rhythmically complex passages. But they also demonstrate a convincing mastery of the Sonata’s continually fluctuating tempos and the wide gamut of emotions that encompass its three movements.

[Rachmaninov] The secret weapon in this performance is Isata, who I think really might be gifted. She plays the piano part with impressive musicality and technique. [Barber] He is strongest in the Adagio, where his legato line is beautiful, and Isata brings excitement to the finale with bold playing that her brother matches, even though she’s in the lead.

[In the Adagio of the Barber] Sheku’s playing reaches the sort of lofty emotional peak you’d have expected from a du Pré or a Navarra.

The Rachmaninov sonata proves a wonderful illustration of how these two very different musical personalities complement one another. Isata is the more assertive, extrovert presence throughout, yet she never overwhelms her brother’s predominantly soft-grained sound...And as throughout the programme, there’s a wonderful sense of give-and-take as the players pass musical ideas from hand to hand.