I've recently joined the Sonos family with a couple of Sonos One, (a Gen 1 & Gen 2), and am really happy with them.
Although I'm an Apple Mac user I've never bothered using iTunes, so my music files are located in a seperate location and handled by Swinsian Music Player app. I've set the path to my collection in the Sonos Mac app and it's working fine.
My Swinsian playlists are exported as .m3u8 files to a Playlist folder, but despite adding the path to this folder in the Sonos app, no files are visible either in the Imported Playlists section or in the Folders section of My Music Library.
Any clues as to why they're not available?
Best answer by ratty