Sonos Music Library won't update

Check how many tracks are in your library. A Sonos music library has a 65,000 track limit. The limit can be reached by either track count or by memory usage. The memory limit can be reached prior to 65,000 tracks if there is a large amount of metadata. For example, classical music tracks tend to have a large amount of metadata and can use up the available memory before the 65,000 track limit is reached.

Also make sure your MP3 file sample rate is 48kHz or lower and the bitrate is 320kbps or lower.

You might also try rebooting your MacBook, deleting and re-installing the Sonos app, and rebooting your router.

hi @Bill_22 you mentioned you have your music on your MacBook but did also added the NAS tag to your post, so you may be interested in these steps to update an Apple Music library with Sonos - check in the Apple Music preferences the Music Media folder location which should be the same as the Sonos Music Library path settings

the NAS tag is there by accident, the forum was suggesting tags and i thought i was deleting that one.

but like i said up until recently this was not a problem. and if i delete my music folder and re-add, all the songs it wouldn’t add before are there. most of my mp3s are 320/44.1

if you are using the Apple Music App on your MacBook you may need to manually update the xml file - check for a subfolder, called iTunes, and export the Apple Music library. Choose in Apple Music under the File menu the ‘Library’ option and ‘Export Library’. Store the library file ‘iTunes Music Library.xml’ in the subfolder. Remember that you will need to export the library each time you made changes to your Apple Music tracks or playlists since this file is not automatically updated.

i do use apple music but what does that have have to do with sonos checking my music folder and seeing if there are new mp3s in there. this should not be this complicated.

The poster you are ranting at isn’t a Sonos employee (not that you should rant at them either), they are a user just like you.  They are trying to help you out of the goodness of their heart, so dial it back a bit or more than likely they will leave you hanging.

The iTunes Music Library.xml contains a bunch of information from your iTunes/Apple Music account, including any playlists you wish to import to Sonos.  This is why @el rubio is suggesting you include it in the path shared to Sonos.  They are just being thorough.

sorry if i seemed harsh. not trying to import apple music playlists. i just want sonos when i click “update music library” to actually update with the new mp3s i added to my music folder. 

but i still don’t understand why sonos makes it so complicated. you should be able to drag and drop!

thanks for the attempts at help everyone

Sonos doesn’t read the individual files in your directory. It reads the .xml file that has that list of files. Most applications create that for you, Apple requires a manual process to create that particular file. 

Edit: This is correct for playlists, but not correct for individual music files.

again this is a new problem. up until this week i could drop new album folders into my Music folder -- whether or not i added them to apple music (fka itunes) -- , click “update music library” in sonos and they would appear once it finished running the update. now the only way to get them to show up is to delete my music folder from my sonos library then re-add. which works but it just takes forever. i guess i was just hoping this was a new bug that other people were experiencing. i’ll call sonos support and see what they say.

Apologies, I misspoke. The Sonos uses the .xml files for playlists built in to Apple’s Music app, not the files themselves.

The Sonos system should be picking up the new files once you run the “update music library” function, albeit it may take some time, as that’s not an instant gratification process, sometimes, and depends on the speed of the device running the process. It’s not done on your controller device, but given to a speaker in your Sonos system to do, and if it happens to be an older/slower device, it might take slightly more time.  The slightly confusing aspect is that it’s being picked up if you delete the library, and re-initiate the process, which is what is leading me to believe there may be a timing issue. Normally, I’d have thought that the file was of an inappropriate format….but the fact that the file shows up after you delete, and reset up the path proves that thought incorrect.

I’d be really tempted to run a diagnostic from within Sonos several times….once before adding the new files to your system, then another after adding them to your system, then another after running the (failed) update music library process, and finally a fourth one after deleting and re-adding your library path. Provide all four resulting numbers when you call in to Sonos, and let them take a look to see if there’s something different between them beyond just the added files.