======================== unified (from filesystem) ========================
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                                        'duration'  '195'
                                          'artist'  'St. Vincent'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '11'
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
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======================== rawer (from filesystem) ========================

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'TDOR' (Original release time)                      '2014'
'TDRC' (Recording time)                             '2014'
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'TIT2' (Title/songname/content description)         'Bring Me Your Loves'
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'St. Vincent'
'TPE2' (Band/orchestra/accompaniment)               'St. Vincent'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Loma Vista Recordings'
'TRCK' (Track number/Position in set)               '8/11'
'TSO2'                                              'St. Vincent'
'TSOP' (Performer sort order)                       'St. Vincent'
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'TXXX:Artists'                                      'St. Vincent'
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'TXXX:MusicBrainz Album Status'                     'official'
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'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'female vocalists', 'singer songwriter']
'TXXX:originalyear'                                 '2014'
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========================== row from database ==========================
                                              'id'  179923
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/St. Vincent/St. Vincent/08 - Bring Me Your Loves.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  195
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  7920941
                                           'mtime'  1636400843
                                   'redo_metaread'  0
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                                      'tag_artist'  St. Vincent
                                     'tag_release'  St. Vincent
                                       'tag_title'  Bring Me Your Loves
                                             'bpm'  133.0
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                                   'search_artist'  'st':1,2 'vincent':3
                                  'search_release'  'st':1,2 'vincent':3
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                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'female vocalists', 'singer songwriter']
                                        'tag_date'  2014
                                     'discogstags'  ['art rock', 'electronic', 'rock']

============================== file details ==============================
                                           'mtime'  1636400843.2929683  (2021-11-08 20:47:23)
                             'size'  7920941