======================== unified (from filesystem) ========================
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                                      'tracktotal'  '13'
                                            'date'  '2005'
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'TPUB' (Publisher)                                  '4AD'
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'TSO2'                                              'Mountain Goats, The'
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========================== row from database ==========================
                                              'id'  1376994
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Mountain Goats - The Sunset Tree/The Mountain Goats_04_Dilaudid.mp3
                                         'working'  None
                                         'bitrate'  174
                                    'duration_sec'  130
                                           'genre'  ifs-songwriter-indie
                                        'filesize'  2836713
                                           'mtime'  1636400430
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                                     'tag_release'  The Sunset Tree
                                       'tag_title'  Dilaudid
                                             'bpm'  144.438
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                                             'key'  9A
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                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'folk rock']

============================== file details ==============================
                                           'mtime'  1636400430.1736047  (2021-11-08 20:40:30)
                             'size'  2836713