“i once played the wanderer fantasy by schubert for the late alesander brailowsky…a cautious tempo was my own admission that it was a hazardous piece. Brailowsky, however, had his own notion of the tempo. after the opening measures, he cried ‘faster.’ I went faster. but suddenly i felt my arm muscles contract. As the difficulties increased, so did the contractions in my arm. Just as my strength was waning, brailowsky shouted over the fortissimos ‘It’s not fast enough!’ that was too much…”
Julian Jacobson, a world class pianist, who was adjudicating at a competition i played in, gives regular concerts of all beethoven sonatas in a concert. yes, i mean all 32 in 1 day in 1 concert with 2 15 min breaks. hes mad!