Your music library is the music on USB drives, network drives and the device's internal memory. Its settings are in your device's Settings → Sources, under My music.
Update or rescan
When music is missing, start here:
Update libraryadds the new files and removes the deleted ones. It's quick: use it first.Rescan libraryreads the whole library again from scratch. It can take a long time with big libraries: use it only ifUpdate librarydoesn't help.
While the device reads your music, Scanning library… shows at the top of your page. Wait until it disappears.
The network drive is added, but there's no music
Go to
Settings→Sources→Network drivesand check that the drive shows up under the mounted drives.Press the edit button next to the drive and check
Path: it must point to the folder that holds your music, as shared by your NAS or computer.Check
File share typeand, if your NAS needs them,UsernameandPassword.Press
Save drive, then go back toMy musicand pressUpdate library.
Found on your network, use that entry: it fills in the address and the path for you.Some music is missing from Artists or Albums
Artists and Albums are built from the files' tags (artist, album). Music without these tags doesn't show up there, but it's still in Music Library, which lists your folders.
Go to
Browse→Music Libraryand check that the music is in its folder.If it is, add the missing tags with a tag editor on your computer.
Go to
Settings→Sources→My musicand pressUpdate library.
Music disappears after a restart
If your music is on a network drive, the device may have started before the drive was ready.
Check that your NAS or computer is on and isn't asleep.
Go to
Settings→Sources→My musicand pressUpdate library.
If your music is on a USB drive, unplug it and plug it in again, then press Update library.
The device is slow or stops responding with a big library
The first scan of a big library can take a long time, and the device can be slow while it runs.
Wait until
Scanning library…disappears fromBrowsebefore you use the device.If the drive is on the network, connect the device with an Ethernet cable.
Don't press
Rescan libraryunless you need it:Update libraryonly reads what changed.
Search doesn't find music that's in the library
Go to
Settings→Sources→My musicand pressUpdate library.Check the file's tags (artist, album, title) with a tag editor on your computer: search uses the tags, not the file names.
Still not working
Report a bug from the app and tell us where your music is (USB, network drive or internal memory), roughly how many tracks it holds and, for a network drive, your NAS brand and model.

