Is it because you practice the same tune every day that you can't say that you haven't made progress, but you will make progress every day? What is single progress? There may be the following reasons why the progress is not obvious: first, practice the same song every day, and then keep still repeatedly; Second, I don't pay attention, no, it's very hard to practice. In this case, the progress is also very weak, and the above two points need to be changed to make progress.