Adding new folders to music on mycloud not recognised by Network music player

Regarding iTunes playlists" I never actually “make” playlists from scratch, but rather I have iTunes make a few new random playlists each time I have added a few new albums to iTunes. I never play them in iTunes; instead, I always export them as m3u files to my playlist folder, and from there I copy them to whatever and wherever I want to use them (e.g. drives connected to my WDTV, and since I got a My Cloud this is where they go) and any device that can play playlists access them from the NAS. In the words of Steve Jobs, making and using iTunes playlists for myself is “insanely” simple.