Sad background music pure music includes "Sad or Happy", "Sorrow and Sorrow", "The Mark of the Rain", "The Street Where the Wind Lives", and "the?ludlows".

1. "Sadness or Happiness"

It is a piano piece originally named "My? Soul" and is also called "Sadness or Happiness". The reason why it is translated as "sad or happy" is because the main melody has a touch of sadness, and the submelody has a cheerful beat. Two seemingly contradictory beats sublimate the artistic conception of this piano music.

2. "Sorrow and Sorrow"

The classic soundtrack of "Naruto" was composed by Koji Takanashi. The whole song is foreshadowed by violin and guitar, accompanied by the slow sound of piano, making people feel sad and miserable.

3. "The Mark of Rain"

This song was written by Lee Yoon-kun, a musician who is best at depicting love in Korea. When he wrote this song, it was in a sky full of stars. At night, it suddenly rained. It allows us to feel the beauty of life and the true meaning of life. Different people will find their truest selves from this piece of music.

4. "The Street Where the Wind Lives"

It is a classic piece collaborated by Isomura Yukiko and the famous Japanese erhu player Masao Sakashita in 2003. It is a dialogue between erhu and piano. It is refreshing. Overall, the application of Erhu makes the piano slightly redundant. In other words, the appeal of Erhu itself exceeds that of the piano. The tones emitted by the two instruments will never overlap, but chase like butterflies, as if two Lovers who can never be together.

5. "the?ludlows"

The first part of the song is exquisite, beautiful, quiet and elegant, while the second part is full of tragic and majestic. The moving melody brings the listener into a world full of fate and tragedy. Realm takes hold of your various senses and mobilizes every cell of your sense of hearing.