In Bar 10 of Schumann’s piece, there is a small part in Bar 10, in which the left hand has to play 1/32-notes E3, C#4, D#4, E4. Unfortunately, my hand is not large enough to be able to play this 4 notes without jumping from E3 to C#4. The problem is, that the notes have to be played evenly @ 560bpm (1/4-note @ 70bpm). Jumping results in a small additional delay which is very distracting.
During learning, I realized, I could play that E4 in the middle of 2 chords with the right hand. The following chord is easy to play, so I won’t need much time to change from E4 to the following chord.
Without this change, One would have to play E3, C#4, D#4, E4 with 5, 3, 2, 1. The D#4 is to too far aways from E3, so one would have to had jump. This is now changed, because E4 is played with the right hand. This results in a changed fingerset to: 5, 2, 1, 1 (right hand). Nice, that the chord in the left hand is a E4, C#5, E5 chord, so there is no additional effort necessary to play E4 a bit later 🙂
There is in Bar 11 a similar situation with a G4 and a chord G4 C#5 E5 G5, but I experienced, that it is already very difficult to get the chord in time and the following chord G5 C#6 E6 G6 as well. Morover, the hand is large enough for not having to have to jump.