...as our producer has been traveling all over the world, and trying to mix and edit music while on the go, is a bigger mission than you can imagine.

Apologies accepted and yes, everything takes time. Everything takes a lot of efforts, even with results looking very simple. Even though I’m not a musician at all (believe me you wouldn’t want to hear me playing on any instrument or to sing 😆), I’m glad your are giving hand to such an artists.
Congratulation to @edprivat and many others in the near future!