[SOLVED] Can't see Synology NAS Library

[Tim Curtis]

Examine the MPD log for errors. It records each file that it is able to successfully index and if it encounters any errors trying to index files.

Code:

cat /var/log/mpd/log

The files in your music collection have to be marked with read access and the directories marked with both read and execute access.
https://www.musicpd.org/doc/html/user.html#database