It's not only a study of expansion of the hand, it's a study of contraction, which isn't so obvious, because we pianists see in blocks, physical blocks of notes, we see the four chord, which is repeated, so we see this big stretch, and our first instinct is to try to accommodate the stretch.
這不僅是對手部擴展的研究,也是對手部收縮的研究,這一點並不那麼明顯,因為我們鋼琴家看到的是成塊的音符,是有形的音符塊,我們看到的是重複的四和絃,是以我們看到的是巨大的伸展,而我們的第一本能就是努力適應這種伸展。