What the papers said:
Martinu’s Fourth ... its restless invention, pungency and virtuosity were given sharp focus by the pianist Ivo Kahánek, with keen, gritty involvement in the citrus tang from the BBC Symphony Orchestra under Jiří Bělohlávek.
Both in Britten’s 'Four Sea Interludes' and in Prokofiev’s Fifth Symphony, Bělohlávek’s serious-minded approach paid dividends in performances of considerable power, perceptive detail and weighty substance.

THE DAILY TELEGRAPH
Martinu gave the concerto the title Incantation, but its overall effect is less of enchantment than of incoherence.
This applies, too, to the piano part, which shifts uneasily between a semi-obbligato role and a full-out virtuoso one, with not much lyricism to leaven the mix. It proved a weak vehicle for the UK debut of the young Czech pianist Ivo Kahanek, though he delivered it with panache, his assured fingers finding their way around every note. Belohlavek and the orchestra were on purposeful form, but equally unable to establish that the piece is of real value.

THE GUARDIAN