Liang Zhu (violin concerto. Prelude: flute)
Fishing boats sing late (guzheng/flute, multi-version)
Wang's music (there should be an instrumental version, which is very melodious)
Autumn Moon in Pinghu (Piano)
Three Lane of Plum Blossoms (originally it seems to be a guqin performance, but there is also a piano version, adapted by Wang Jianzhong).
Erquan reflects the moon (erhu, piano version, melodious, but more sad)
Foreign countries:
Debussy:
Moonlight (piano)
Deux Arabesque no. 1 (piano, I don't know how to translate it, it should be the first song of Arabesque, very nice, recommended).
Reflection in water (piano)
Fantasy (piano version and orchestral version and flute and harp version)
Ravel:
Pavan dance (all Pavan dances are actually melodious)
Wonderland (wind version and piano version)
Ships at sea (from Mirror Suite)
Mozart's clarinet concerto and the second movement of the quartet
Chopin's serenade (the middle part is not very melodious, but the whole piece has not changed much, and it may be boring. All serenades must be up to standard, especially the 20th and 19).
Hmm (expressing hesitation, etc.) ... I don't know if these are enough, but there should be many more. Limited knowledge, I hope I can help.