{"subjects": ["Music", "History and criticism"], "key": "/works/OL4500357W", "title": "De musica", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL900367A"}}], "type": {"key": "/type/work"}, "covers": [4040394], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-10T06:32:39.709567"}, "last_modified": {"type": "/type/datetime", "value": "2025-03-12T20:58:02.375611"}}