I was wondering, when practicing away from the piano, is it best to have the hand resting on the tabletop and then lift each finger off, or should the hand hover above the surface?
No expert needed for that question. It is not an excercise in lifting fingers, rather in dropping them coordinatedly, so definitely let your hand hover comfortably, just like when you play piano.
It's probably a good exercise for the 4th finger.
Depends how much physical damage (and potential long term injury) you wish to cause to yourself.
Really? So it's definitely not a good idea? I'm not being forceful here, just gently lifting the 4th finger.
I'm not saying you can't lift it.. But the reasons it's difficult is not because it's "weak" - it is anatomically restricted, the structure of the hand is such that it doesn't function in isolation that way. As an aside, think for a second and tell me how you think lifting your fingers (in isolation from the keyboard and your entire hand/arm mechanism) will improve your playing.Also, it's often wise to exercise caution when discussing such things here because while you may do it gently others may misinterpret the idea and do it somewhat forcefully.....While there is a strength element to playing, its not the major factor - if it was i assure there would not be 5 yr old prodogies. Your playing demands accuracy/coordination and a balanced effective use of your body much more than it does physical strength. Accuracy needs to be developed in relation to the keys and how they function, and music, because in order to practice control you need an aim - the aim is musical expression.
I agree. I only mention it because, perhaps, it's possible to make the 4th finger more dexterous - Though it'll probably do more harm than good. I understand that the best way to improve is the practice AT the piano. I was, like the OP, merely looking for exercises to do at school/work. I go over pieces in my head, and that's really beneficial, but I also do need to improve my coordination. Tapping out a pattern with the fingers is surely beneficial for improving the response of individual fingers/ coordination. At the end of the day though, it needs to be practiced in relation to the keys, as you said.