However, this is not what i want my NAS to be configured with, so I reset SMB minimum to SMB v2.
Then i thought to give NFS a try.
This is what I did:
1. In Synology control panel - File services - Enable NFS. Check this checkbox.
2. In Synology control panel - Shared folder - go to the music folder - click Edit. Navigate to NFS permissions. Create a new NFS rule.
In the dialog box, this is what i did (not sure if these are the optimum settings)
Hostname = 192.168.1.159 (this is the hostname of my snakeoil pc)
privilege = read only
Squash = map all users to guest
Security = sys
Allow users to access mounted subfolders = tick
Now in snakeoil os, set the mount points as follows:
media = 192.168.1.113:/volume1/music
mount point = leave it empty
mount type = NFS
and now everything works!