Seems I am not alone with this issue:
Sonos App on MacOS running Catalina 10.15.7.
Cannot add any of my own music library.
I have an ’offline’ library of around 50,000 songs, originally in managed in iTunes, and now in Apple Music, on the laptop. I do not run any streaming. And the music is stored on an External HDD. (Although I believe the library ‘database’ remains in the internal HD, in user/music. The library is shared in MAcOS settings.)
Downloaded the latest app - Sonos_79.1-53290.dmg and installed it. Head to Manage Music Library and click add music folders + sign. So far so far.
Here’s where it gets interesting: click on ‘My Music Folder’, and the whole app simply freezes, and has to be forced closed.
Click on Add ‘another folder or drive connected to my computer’, browse to the same folder Apple Music points to on the External drive, enter (my) administrators details, and for a good 10 minutes, it spins the disc, with ‘please wait, adding share information ton Sonos System’, followed by ‘unable to add shared folder to your music library, (913)’
I have tried all the steps identified here:
to no avail.
I suppose the saving grace is that the laptop seems to keep the Sonos system ‘going’, I can play music from Apple Music, and using the Macbook sound settings, route the music to the Sonos System.
The android app never seems to be able to access the system, and has to reset the system every time I open it.