Why is the violin so hard to play?

When you pluck a note on a guitar string, there isn't very much that can go wrong. You may not play the right note at the right time, of course, but a single note will always come out at the expected pitch, and sounding reasonably musical. When a beginner tries to play a violin, things are much more difficult. When a bow is drawn across a string, the result might be a musical note at the desired p

[ghostbass]

良い振動と悪い振動？圧力が強すぎるとどうなるか