Thank you for this comprehensive playlist which brings back the wonder of that drama ! 

It adds more to the already delicious playlist by Peachey Blossom with translated lyrics : https://kisskh.at/discussions/hidden-love/108569-hidden-love-full-ost-with-eng-subs (Peachey Blossom, June 20, 2023) to which I had added some related song video links.     You did not forget to add Peachey Blossom's MVs at the end of your playlist which I am listening to as I write this ❤️❤️❤️❤️❤️❤️

i also just noticed of the cameo songs you have highlighted in the drama. I will add those songs at a later  time. I will announce it here.