What the original poster likes is good-sounding BGM. . I saw that many people were paying attention to the issue, so I came here to see if you like what I recommended.

1.Karma, piano music, from KID's work "Ever17", a very touching melody.

2. 半えない思い, piano music, from the BGM of "Fate/Stay Night", is a relatively sad style of music.

3. Shell No Girl, piano music, comes from the "Shell No Girl" music collection. It is very sentimental when combined with the poignant story.

4.Sorrow, also from the BGM of "Fate/Stay Night".

5. Dissolve, music box song, BGM from "Land of Wheels", BGM used in healing scenes, it is also a pure music box music that I prefer.

6. オセンチな歩美, piano music, from "Detective Conan", one of my favorite BGMs.

This is probably what I have thought of first. If the author likes my style, you are welcome to continue communicating.