With a refined touch and a beguiling sense of Schubertian style, the Italian pianist Andrea Lucchesini conveys to captivating effect the sublime invention and intimacy of the impromptus. He plays both sets, those of D899 and D935, so there are eight pieces in all, and he unfailingly finds the music's expressive heart, balancing vitality with structural judgment, lyricism and poise with fluency and caprice. There is a constant feeling that Schubert was at his most spontaneous when writing these sophisticated gems.