Is there a way of obtaining a feedback from a computer about what I play on a digital piano?
The purpose is to learn, and although I'd prefer real-time feedback, any sort of feedback would be useful. Saving the result of my drills and getting it through a program would also be interesting.
It's clear that that won't substitute a teacher, specially when it's about why something is wrong, and not only what is different. But it could be an inexpensive form of learning.