======================== unified (from filesystem) ========================
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                                           'genre'  eid-ebm or industrial or darkwave-industrial
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                                           'mtime'  1620298494
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                                       'tag_title'  2 Hxxxxxs and an Eightxxxl
                                             'bpm'  137.0
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                                      'num_images'  0
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                                        'tag_date'  2005
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============================== file details ==============================
                                           'mtime'  1620298493.9882195  (2021-05-06 12:54:53)
                             'size'  3425650