I have the double-note version of "Skeleton Dance", which is available on Kugou!
I have asked about other songs before, probably these are them
"Canon"......... Pachalbel; G.Qi; C.Yu
< p>《Our love affair》………… C.Yu《Banjo and Fiddle》………… William Kroll; C.Yu
"Vocalise" (vocal training song).........Rachmaninoff; C.Yu
"Indigo Waltz" (Indigo Waltz).........C.Yu
《Meditation》………… Massenet; C.Yu
《Forbidden Colors》………… Ryuichi Sakamoto; C.Yu
《Dance Macabre》 (Dance of the Skeletons)......... G.Qi; C.Yu
"L'Apres-midi d'un Faune" (The Afternoon of the Faun)......... Debussy, I have this too
p>
"Merry Christmas Mr Lawrence" (Merry Christmas Mr Lawrence)...... Ryuichi Sakamoto
The music in the competition section of the third episode is "Gypsy".
The music at the end is "Forbidden Color".
The ED at the end uses the double-note version of "Forbidden Colors".
The original song of the ending song is indeed from the album "Duel" by the double violin group.