Question: who wrote the music to a whiter shade of pale
[{'answer': 'Gary Brooker', 'provenance': [{'wikipedia_id': '1369118', 'title': 'A Whiter Shade of Pale', 'start_paragraph_id': 2, 'start_character': 105, 'end_paragraph_id': 2, 'end_character': 117, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Keith Reid', 'provenance': [{'wikipedia_id': '1369118', 'title': 'A Whiter Shade of Pale', 'start_paragraph_id': 2, 'start_character': 119, 'end_paragraph_id': 2, 'end_character': 129, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Matthew Fisher', 'provenance': [{'wikipedia_id': '1369118', 'title': 'A Whiter Shade of Pale', 'start_paragraph_id': 2, 'start_character': 134, 'end_paragraph_id': 2, 'end_character': 148, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1369118', 'title': 'A Whiter Shade of Pale', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 669, 'bleu_score': 0.9028614348758751, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2340119180846623800}, 'section': 'Section::::Abstract.'}]}]