Where can I copy music files to?

I'm trying to copy music files from a flash drive to my LG Leon (Android 5.0), but copying to the directory Android>data>com.google.android.music>cache then opening the "Music" app doesn't bring up the files. Am I missing something?

from Android Forums at AndroidCentral.com - Ask a Question http://ift.tt/2avvNbe
via IFTTT