======================== unified (from filesystem) ========================
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                                        'duration'  '142'
                                          'artist'  'Randall Reed with The Forerunners'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                     'tracknumber'  '9'
                                      'tracktotal'  '21'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy;set-th-christmas'
                                             'bpm'  '145.685'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

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'TIT2' (Title/songname/content description)         'The Peppermint Stick Man'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Randall Reed with The Forerunners'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
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'TRCK' (Track number/Position in set)               '9/21'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Randall Reed with The Forerunners - The Peppermint Stick Man.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  142
                                           'genre'  set-th-candy;set-th-christmas
                                        'filesize'  3432251
                                           'mtime'  1620343122
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets set candy;set christmas
                                      'tag_artist'  Randall Reed with The Forerunners
                                     'tag_release'  American Song-Poem Christmas
                                       'tag_title'  The Peppermint Stick Man
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                                   'search_artist'  'forerunners':5 'randall':1 'reed':2 'the':4 'with':3
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                                             'key'  9B
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                                        'tag_date'  
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============================== file details ==============================
                                           'mtime'  1620343122.230923  (2021-05-07 01:18:42)
                             'size'  3432251