{"title": "An Illustrated guide to composers of opera", "subjects": ["Opera", "Composers", "Biography", "Bio-bibliography", "Composers, biography", "Opera, bibliography"], "key": "/works/OL19595708W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL504208A"}}], "type": {"key": "/type/work"}, "latest_revision": 2, "revision": 2, "created": {"type": "/type/datetime", "value": "2019-04-09T13:17:16.555500"}, "last_modified": {"type": "/type/datetime", "value": "2021-09-16T03:22:32.387019"}}