Question: What genre of music  did Loudest Whisper debut on a vinyl record format characterized by a speed of 33 ⁄ rpm, a 12 or 10 inch (30 or 25 cm) diameter, and use of the "microgroove" groove specification?
{'answer': 'Irish folk rock/progressive', 'supporting_facts': [['The Children of Lir (Loudest Whisper album)', 0], ['The Children of Lir (Loudest Whisper album)', 2], ['LP record', 0]]}