The wedding in the dream is in G minor, the fixed mode is 1=bB, and the first mode ends with "6". Just 6 is a fixed mode of G, so it is called G minor. In terms of tonality, nothing special. The whole piece has no special tone trend and belongs to pure minor. In terms of rhythm, it is difficult for some beginners to master. There are 4\4, 3\4, 7\8, 6\8, 12\8 and 9\8 beats. If you want to play well, you have to break through one by one. In the process of playing, I personally feel that we should pay attention to consistency, control our strength and put our feelings into it. We should pay special attention to the octave of orgasm. As far as the whole work is concerned, it depends on whether it can be perfect. In the feeling of this piece of music, you should fantasize about beautiful things. This piece of music has four parts: prelude, low tide, transition and climax. Every paragraph has every feeling, sometimes warm as the wind, sometimes soft as the rainbow.