{"first_publish_date": "1972", "dewey_number": ["781/.09/02"], "title": "The theory of hexachords, solmization, and the modal system", "lc_classifications": ["ML174 .A46"], "key": "/works/OL150456W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2076961A"}}], "subject_times": ["500-1400"], "type": {"key": "/type/work"}, "subjects": ["History", "Music theory", "Musical intervals and scales"], "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-10-19T23:03:10.133059"}, "last_modified": {"type": "/type/datetime", "value": "2025-12-15T04:06:28.872289"}}