I am confused. Are you saying that Jaikoz, at this time does, not save changes to iTunes/Music? I am not seeing the corrected information translated to the Music app. This seems like a wasted effort on my part to use Jaikoz to clean-up my music collection, does it not?
No it doesn't currenty inform Music app of changes, we cant base our development of Jaikoz on the timescales of Apple. But there is a very simple workaround after making changes in Jaikoz and saving them simply select all your songs in Music, do Get Info and Music will then update its library based on the new metadata added by Jaikoz.