Just unpacked my “My Cloud” and have been unsuccessful in backing up my pics and music.
My music is in a folder containing multiple folders by artist. Each of those folders has folders by album containing the music files.
You don’t really give much information.
If it’s a Windows PC like mine, then I have my NAS shares mapped to 3 x devices X: Y: and Z: on my PC and they are for 1) security cameras, 2) file backup and 3) videos/images/music.
I set up Windows File History to backup the appropriate folders on my computer to X: and it works a treat.
I have a separate My Passport drive which I connect once a week, Sunday mornings for a full system backup with Ashampoo Backup Pro.