======================== unified (from filesystem) ========================
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                                        'duration'  '173'
                                          'artist'  'Billy Bragg'
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                                      'tracktotal'  '21'
                                            'date'  '1987'
                                        'comments'  ''
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'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-rock'
'TDOR' (Original release time)                      '1987'
'TDRC' (Recording time)                             '1987'
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'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Bragg'
'TPE2' (Band/orchestra/accompaniment)               'Billy Bragg'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Elektra/Asylum Records'
'TRCK' (Track number/Position in set)               '11/21'
'TSO2'                                              'Bragg, Billy'
'TSOP' (Performer sort order)                       'Bragg, Billy'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
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========================== row from database ==========================
                                              'id'  1376632
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Billy Bragg - Back To Basics/11 - The Myth Of Trust.mp3
                                         'working'  None
                                         'bitrate'  182
                                    'duration_sec'  173
                                           'genre'  ifs-songwriter-rock
                                        'filesize'  3965256
                                           'mtime'  1638562491
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos To 11 Of ifs songwriter rock
                                      'tag_artist'  Billy Bragg
                                     'tag_release'  Back to Basics
                                       'tag_title'  The Myth of Trust
                                             'bpm'  108.2
                                    'search_title'  'myth':2 'of':3 'the':1 'trust':4
                                   'search_artist'  'billy':1 'bragg':2
                                  'search_release'  'back':1 'basics':3 'to':2
                                     'search_rest'  '00singer':1 'eos':3 'ifs':6 'of':5 'rock':7 'songwriter':2 'to':4
                                    'search_combo'  '00singer':10 'back':7C 'basics':9C 'billy':5B 'bragg':6B 'eos':12 'ifs':15 'myth':2A 'of':3A,14 'rock':16 'songwriter':11 'the':1A 'to':8C,13 'trust':4A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['rock', 'political', 'british', 'folk', 'singer songwriter']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638562490.513801  (2021-12-03 21:14:50)
                             'size'  3965256