Question: what did robert moog contribute to the music industry in the 1960s
[{'answer': 'electronic music', 'provenance': [{'wikipedia_id': '26581', 'title': 'Robert Moog', 'start_paragraph_id': 1, 'start_character': 95, 'end_paragraph_id': 1, 'end_character': 111, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]