Question: when did nationalism begin to emerge in music
[{'answer': 'early in the 19th century', 'provenance': [{'wikipedia_id': '3360763', 'title': 'Musical nationalism', 'start_paragraph_id': 3, 'start_character': 43, 'end_paragraph_id': 3, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '3360763', 'title': 'Musical nationalism', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 601, 'bleu_score': 0.9048007328590271, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2424158136944840437}, 'section': 'Section::::History.\n'}]}]