Loading music files to an "unregistered" phone?

[louisstone]

I'm giving my old cell phone to my nephew to use an an MP3 player. I assume best practice is to do a factory reset, but he wants the music I have on there.

I can always offload the music to my computer, but can I put it back onto the phone without doing all the Google accounts stuff?

The phone is an original Moto X running Lollipop, IIRC.

Thanks in advance for your thoughts.