======================== unified (from filesystem) ========================
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                                        'duration'  '105'
                                          'artist'  'The Willis Brothers'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  '24'
                                            'date'  '1987'
                                        'comments'  ''
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'TDOR' (Original release time)                      '1987'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'Long Haul Weekend'
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'TPE2' (Band/orchestra/accompaniment)               'The Willis Brothers'
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'TPUB' (Publisher)                                  'Deluxe'
'TRCK' (Track number/Position in set)               '18/24'
'TSO2'                                              'Willis Brothers, The'
'TSOP' (Performer sort order)                       'Willis Brothers, The'
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========================== row from database ==========================
                                              'id'  1527551
                                            'path'  /data/Music/Bulk/00localcharacter/The Willis Brothers - 24 Great Truck Drivin_ Songs/18 - Willis Brothers - Long Haul Weekend.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  105
                                           'genre'  loc-namerica-country
                                        'filesize'  3385604
                                           'mtime'  1621629835
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                                      'tag_artist'  The Willis Brothers
                                     'tag_release'  24 Great Truck Drivin' Songs
                                       'tag_title'  Long Haul Weekend
                                             'bpm'  103.855
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                                   'search_artist'  'brothers':3 'the':1 'willis':2
                                  'search_release'  '24':1 'drivin':4,5 'great':2 'songs':6 'truck':3
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                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'oklahoma', 'male vocalists', 'kansas city', 'missouri']
                                        'tag_date'  1987
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621629835.0914252  (2021-05-21 22:43:55)
                             'size'  3385604