Written in one fell swoop and polished for ages: thus arose one of the most significant works of Czech piano music. Dvorák’s G-minor Piano Concerto was composed in barely two months in 1876 only to be refined for more than seven years before it finally appeared in print. As a result, Dvorák’s handwritten score abounds in changes and corrections. The 141-page autograph bears impressive witness to the work’s extraordinarily difficult gestation. Besides the original text, it contains annotations in...