The notes and fingering gradually turn transparent in much the same way as the green highlight brightens and darkens according to the accuracy of your playing. The difference is the notes will gradually disappear altogether as you learn to play the piece by heart.
The notes and fingering gradually turn transparent in much the same way as the green highlight brightens and darkens according to the accuracy of your playing. The difference is the notes will gradually disappear altogether as you learn to play the piece by heart.