If using a Macintosh computer, additional software is required in order to transfer files.
Connect the device to the computer using the supplied USB cable.
If necessary, select the status menu (located in the lower-right).
From the Ongoing section, ensure Connected as a media device is displayed.
To change, select Connected as a camera then select Media device (MTP).
Launch File Explorer or Windows Explorer on the computer.
Using the computer keyboard, press Windows+E (+E) keys.
Alternatively, right-click Start then click Explore.
Using File Explorer or Windows Explorer, navigate on the computer to Libraries > Music.
Use the computer to copy music and other audio files into a folder on the device.
For any accompanying artwork in JPEG format, rename the art file albumart.jpg and copy into the same folder as the music files.
To further organize files, create a subfolder in the newly created music folder and copy desired music files into it.