우주소녀 (WJSN) - 비밀이야 Secret (original version?) 

확실히 코러스있는거랑 없는거랑 차이가나는구나 나인뮤지스 금조 코러스 고퀄

오히려 보컬을 확실히 들을수잇어 좋군

the differences i found:

Hearing this makes me realize the original version has a LOT of harmonies. This version actually sounds more like their voices though.

It is different.. This version is without backing vocals and all the vocal layers.

I'm in absolutely love with this version beacuse of this clear sounds omg.Dawon's voice thoo...every time her part is coming i have goosebumps

3:11

Seems like unmastered version, just right when they finished tracking their voices then put together with the instruments

I like this version alot more tbh

Mei qi's voice!!😍😍

i miss this era

It does sound different, but I feel like sometimes radio shows do that for some reason, play it in a way that sounds different. In this it definitely sounds like the vocals are the focus, so I think this might have been a version before they finished production, or... haha idk but you're right it sounds different

3:14

it's an unfinished and unpolished version of the track

Omg this's so cleaaar >.< love this a lot

I repeat xuanyi part many time, that hearing different 😊

No matter how many times I listen, I'm sure it's Yeonjung's voice like an office version.

no different with exy's rap😂

3:11

i love dawon❤