This is what Myriad Music School Piano
Teachers call "hovering helicopter practice – finding your hand
positions quickly, when your hands need to move over a new position".
Robert Estrin from Robert@LivingPianos.com says about the same technique –we at Myriad agree.
It’s
always a great idea to be over the keys before you need to play them.
It will help you relax and be able to concentrate on actually playing
and not just where your hands are located. A great way to achieve this
is by practicing your music right up until the moment where you need to
move your hand. Keep practicing the same line over and over and when you
get to the notes you need to play next just move your hand over them
but don’t play them yet, just get your hand in position. Keep doing this
until your hand effortlessly glides to the correct spot and keep doing
it until it just feels natural. When you feel confident you have
achieved a fluid and precise movement over the keys, play the notes.
Continue to play the phrase and the proceeding notes until you feel
confident enough to move on.
You
can really do this for all your music – whether it requires crossing
your hands or not. The best thing you can do is to stay relaxed and be
ready over notes ahead of time. You should never play from a position in
which you feel like you are constantly catching up.