[[Mainland Chinese Drama 2021] Ancient Love Poetry 千古玦尘]

Was wondering if anyone knows the name of a song on this show. I've searched endlessly with the OST and Shazam, but to no avail. It's an instrumental song that is in episode 4 @ 36 minutes, 38 seconds into the show, where Bai Jue is meditating. You will hear this same song throughout the show. Another time you hear it is when Jing Jian has a flashback when Feng Ran saved him as a child and got her Phoenix Feather (episode 29 @ 16 minutes into the episode). 

 

If anyone might know this song or at least who might have written it, please let me know. 

Many thanks