If using a Macintosh computer, additional software is required in order to transfer files.
For a quick overview of Verizon Cloud, watch this video.
Connect the device to a computer using the supplied USB cable.
If necessary, touch and hold the status bar (located at the top) then drag to the bottom.
Tap Connected as a mass storage.
Tap Media device (MTP).
Selected when a check mark is present.
From File Explorer / Finder on the computer, create a new music folder in Libraries/Music (My Music) folder.
Use the computer to copy music and other audio files into the newly created folder.
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.