{"physical_format": "Spiral-bound", "subtitle": "Home Study Course", "weight": "1.7 pounds", "publishers": ["Hear and Play Music Group"], "number_of_pages": 300, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 20:50:18.033121"}, "isbn_13": ["9780974484501"], "isbn_10": ["0974484504"], "publish_date": "March 2002", "key": "/b/OL11803839M", "authors": [{"key": "/a/OL3750025A"}], "title": "The Secrets to Playing Piano by Ear", "type": {"key": "/type/edition"}, "id": 15580017, "physical_dimensions": "10.9 x 8.5 x 0.9 inches", "revision": 1}