10 years ago by
A Pianist
Argerich's octaves were fast in the video, but they didn't sound as loud and sonorous as Horowitz's. In , Dubal said that Lhévinne's octaves rank with those of Liszt, Tausig, Rosenthal, Rachmaninov, Levitzki, and Horowitz. Since he didn't mention Argerich, that implies that her octaves are inferior to the people Dubal cited.
The quote about Janis' octaves was from the Glenn Plaskin biography. Horowitz said "don't you think his octaves are faster than mine", although I wondered if he was joking when he said that. Maybe it's an issue of the speed illusion that you mentioned. Someone may play faster than Horowitz, but sound slower because they don't have the same rhythmic impetus and forward motion.
Eric, in regards to standards of technical development, in , Schonberg claimed that pianists of the early part of the twentieth century were generally much more technically accomplished than more modern pianists. He said that Hofmann, Lhévinne, Rachmaninov, and Moisewitch all displayed a level of technique that has practically vanished from the earth.