Symfonium would need auto-sync for local media library (triggered by file addition or file change (tags)).
Problem solved:
I’m using Syncthing to share my ~100GB OPUS256 audio media library between devices. So everything is automatic except Symfonum which require manual sync each time I add an album or change a tag.
Brought benefits:
Auto-sync is a must have feature for any modern media player.
Other application solutions:
Poweramp does auto-sync.
Seems that Poweramp is not using SAF , but is using its custom parser on standard Android Media Scanner.
Thanks for the reply. I know that using Android default scanner solves the autosync problem.
The reason why I use Symfonium scanner is because its the only way I found to correctly handle multiple genres (double quote separated). When using Android scanner, even with Symfonium parser : multiple genres are not processed, as well as some other tags.