What are your theories for why scales "work" - I think it can be taken as a given that practicing scales is a great help to overall pianistic ability - but why? How does playing scales effect the mind/hand?
What do you think?
My own conclusion is that the main benefit from scales is that they allow the fingers to adjust and learn (automatically) where they need to go to play the correct notes on the scale. For example, if you play enough scales in D major, when you play a piece of music in D major it is much more effortless to hit a C or F sharp instead of a "regular" C or F. That's been my experience at least.
And I think if you play scales attentively you get a better sense of where your hands are on the keyboard. You get a sense of where your finger is and the notes around it.
Anyone agree, disagree? Have any other thoughts? What about using scales to build finger dexterity?