Pianist Goran Filipec recorded the fiendishly difficult earlier version of Liszt's famous Paganini etudes: S. 140, published 1838-40. Includes the lesser-known 4a and simpler "Tremolo" in G minor.
6 Études d'exécution transcendante d'après Paganini, S. 140: No. 1 in G Minor "Tremolo" (After R. Schumann's Étude, Op. 10 No. 2)
