Connect to iTunes library on DiskStation from iOS Apple Music : r/synology
Synology PH - Did you know every Synology NAS comes with its own Operating System? It also comes with tons of free applications! Check out Synology's Audio Station. Built for all you
How do I play my Synology NAS music on iTunes or Apple Music? - Synology Knowledge Center
How to offload your iTunes library to a NAS | Ars Technica