What really matters is the overall quantity. Practice equals experience. The more time you spend practicing, the more experience you have. In other words, choose the practice schedule that will give you the most amount of time actually practicing. When you are away from the piano, practice the fingering on your leg, listen to recordings of the music and other similar music while you drive or exercise. The more time spent thinking about, listening to, and playing the instrumen

What is practice? Is it just playing your instrument? Is it repetition of a song? Is it going over difficult parts of a piece? Is it working on technique, posture, or timing? Is it going over a piece in your mind? Is it watching or listening to someone else play music? The answer is: yes — practice includes all of these things. Have you ever noticed that if every child in a family goes to the same piano teacher in turn, the second child often shows more promise than the first