I'm currently learning the Polonaise in A-flat.During the end of measure 35 into 36 there are rolled chords in both hands that stretch up to a 10th. Rubinstein manages to block these chords instead of rolling them, as the music demands.Are Rubinsteins hands just big enough for these chords to block them? Or is he changing the chords? Perhaps the edition he plays from may be different. If you don't have music, you may take a look starting at 1:42.&feature=relatedThank you!