Question: who wrote the music for a charlie brown christmas
[{'answer': 'Vince Guaraldi', 'provenance': [{'wikipedia_id': '1256956', 'title': 'A Charlie Brown Christmas (soundtrack)', 'start_paragraph_id': 1, 'start_character': 74, 'end_paragraph_id': 1, 'end_character': 88, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'the Vince Guaraldi Trio', 'provenance': [{'wikipedia_id': '1256956', 'title': 'A Charlie Brown Christmas (soundtrack)', 'start_paragraph_id': 1, 'start_character': 108, 'end_paragraph_id': 1, 'end_character': 131, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1256956', 'title': 'A Charlie Brown Christmas (soundtrack)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 400, 'bleu_score': 0.501765060449445, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11003999666349934005}, 'section': 'Section::::Abstract.'}]}]