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Rachmaninoff |
physics we learn that two solid objects cannot occupy the same space at the same time. Of course, the right hand could play its G-sharp with the second finger, but that feels farther. Use the F-natural as a spring board in order to move laterally (rotationally) over the lower left hand to the low G-sharp.
Two measures later a similar passage places the thumbs again on the same plane with a crossing, this time out on the white keys—that is, if one chooses to use the thumb both times. I prefer to use the second finger on the low right-hand G-natural this time in order to avoid a possible collision. Keep the left hand out and as low as possible Because of the ritardando, though, this is not as big an issue.
The moral, then, is to plan hand crossings in order to avoid having the hands on the same plane whenever possible. One hand is higher, the other lower. I'm thinking now of Ravel, particularly the Sonatine opening. The piano literature is full of these small issues that, without planning, can cause large problems.