well , kossai see this kpop recommendation game from music tag , and thought might be fun to try and stretch here ...
in everyday , kossai listen almost exclusively instrumental , fantasy soundtrack type of music .
when not instrumental , can go for many things , but favourite is still in ethereal or celtic/celtic-inspire styles with faerie or other folklore themes . think blackmore's night , gary stadler's work with wendy rule , and pandora celtica . some wiggle room also for aurora and eivΓΈr . :)
omg I love Blackmore's Night so much and I never ever in a million years thought I would see anyone mention them! Aurora and EivΓΈr I am also familiar with. This is gonna be an interesting recommendation list.
For you, maybe I can play with the ethereal stye, since there won't be much or really any celtic themed things as far as I am aware of in the realm of K-pop;
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Butterfly - LOONA
LOONA is a 12 member girl group. I think this song really captures an ethereal sound well. -
Closer - Oh My Girl
I'm not overly familiar with Oh My Girl, but I immediately thought of this song when you said "ethereal and faerie like" -
Bon Voyage - YooA
This song by soloist YooA, who debuted with Oh My Girl, is a very pretty song that reminds me a bit of Aurora. -
Slow Mo - BAMBAM
BAMBAM is a member of boy group GOT7. This solo song is my favorite of his, and I think very much has a peaceful, tranquil, ethereal sound. -
Nap of a Star - Tomorrow by Together (TXT)
TXT is one of my top 10 k-pop groups of all time. This song in particular is a bit of an outlier in their normally very upbeat discography, but I think you might enjoy it.
In addition, there are a couple of K-drama OST songs that come to mind;
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Fair Dish - YESEO (from The Witch's Diner OST)
I believe this is performed by Yeseo from the girl group Kep1er, but I could be wrong. It might be a different Yeseo.
Please let me know what you think of these! Thank you for the ask :) π