/usr/lib/ is in gnome-music 3.18.2-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/gnome-music/
/usr/lib/x86_64-linux-gnu/gnome-music/girepository-1.0/
/usr/lib/x86_64-linux-gnu/gnome-music/girepository-1.0/Gd-1.0.typelib
/usr/lib/x86_64-linux-gnu/gnome-music/libgd.so
/usr/lib/python3/
/usr/lib/python3/dist-packages/
/usr/lib/python3/dist-packages/gnomemusic/
/usr/lib/python3/dist-packages/gnomemusic/mpris.py
/usr/lib/python3/dist-packages/gnomemusic/widgets.py
/usr/lib/python3/dist-packages/gnomemusic/notification.py
/usr/lib/python3/dist-packages/gnomemusic/grilo.py
/usr/lib/python3/dist-packages/gnomemusic/query.py
/usr/lib/python3/dist-packages/gnomemusic/playlists.py
/usr/lib/python3/dist-packages/gnomemusic/toolbar.py
/usr/lib/python3/dist-packages/gnomemusic/__init__.py
/usr/lib/python3/dist-packages/gnomemusic/albumArtCache.py
/usr/lib/python3/dist-packages/gnomemusic/application.py
/usr/lib/python3/dist-packages/gnomemusic/view.py
/usr/lib/python3/dist-packages/gnomemusic/window.py
/usr/lib/python3/dist-packages/gnomemusic/player.py
/usr/lib/python3/dist-packages/gnomemusic/searchbar.py