{"type": {"key": "/type/work"}, "title": "[Collection containing masses, graduals, alleluias and more]", "subjects": ["Gregorian chants", "Music", "Manuscripts"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL68807A"}}], "key": "/works/OL44024967W", "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2025-09-07T18:43:33.929630"}, "last_modified": {"type": "/type/datetime", "value": "2026-05-20T10:01:29.692812"}}