Question: who wrote the song play me the waltz of the angels
[{'answer': 'C.A. Hussey', 'provenance': [{'wikipedia_id': '47428871', 'title': 'Waltz of the Angels', 'start_paragraph_id': 1, 'start_character': 41, 'end_paragraph_id': 1, 'end_character': 52, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]