======================== unified (from filesystem) ========================
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                                        'duration'  '162'
                                          'artist'  'Paul Robeson'
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                                           'title'  'Were You There'
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                                     'tracknumber'  '14'
                                      'tracktotal'  '22'
                                            'date'  '1935'
                                        'comments'  ''
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                                             'key'  '4B'
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'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Were You There'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '162032'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Robeson'
'TPE2' (Band/orchestra/accompaniment)               'Paul Robeson'
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'TPUB' (Publisher)                                  'Fabulous'
'TRCK' (Track number/Position in set)               '14/22'
'TSO2'                                              'Robeson, Paul'
'TSOP' (Performer sort order)                       'Robeson, Paul'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/30_s collection/paul robeson - were you there.mp3
                                         'working'  None
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                                           'genre'  prerock-jb-jazz-unsorted
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                                      'tag_artist'  Paul Robeson
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                                       'tag_title'  Were You There
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                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['american', 'blues', 'spiritual', 'folk', 'gospel']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527926.0007634  (2021-05-09 04:38:46)
                             'size'  2610740