In the 1990s Maria João Pires recorded all the Mozart keyboard sonatas for DG on a modern concert grand. She played with perfect balance and poise, and the sound was creamily beautiful, even in the allegros. I wouldn’t be without that set, but turn to Bezuidenhout and you’ll notice a more subtle and varied range of colours, especially at the dark end of the spectrum.

The young South African pianist plays a copy of an Anton Walter fortepiano from 1802. He finds a burnished depth of tone in the middle register that really works for the plangent andante cantabile of the C major Sonata (K330). This reading is intimate and deeply felt: as much a tribute to Bezuidenhout’s focused, imaginative playing as it is to the tone of his instrument.

Similarly, he launches into the finale with uninhibited joyfulness, the rasping accented bass notes delightfully brusque. He is equally deft at wringing emotion out of the chromatic turns of phrase...