Copy a File List or Playlist From A Directory

Use case: you have a bunch of stuff in a directory. You only want to copy some items that are in a list.
Commonly, this might be from an m3u or xspf playlist file. So, if you have an MPD root, and only want to grab the items that are part of a playlist onto a flash drive.

rsync -av --info=progress2 --files-from=/home/foo/.mpd/playlists/my_awesome_mix.m3u /data/Music/mpd_root_dir/ /mnt/usb_media_drive/

This will keep the file hierarchy, and assuming the m3u file was relative to the MPD root (which is how mpd works), it'll get appended to your first path, and the result copied to your second. File hierarchy might matter if say you want albums to play in order.