======================== unified (from filesystem) ========================
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                                        'duration'  '257'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '12'
                                            'date'  '2010'
                                        'comments'  ''
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                                             'bpm'  '120.471'
                                             'key'  '8A'
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rest: ''

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

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'COMM:iTunPGAP:eng'                                 '0/'
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'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDOR' (Original release time)                      '2010'
'TDRC' (Recording time)                             '2010'
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'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Giles Perring'], ['arranger', 'Giles Perring']])
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'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Albert Kuvezin and Yat-Kha'
'TPE2' (Band/orchestra/accompaniment)               'Albert Kuvezin and Yat-Kha'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Yat-Kha Recordings'
'TRCK' (Track number/Position in set)               '4/12'
'TSO2'                                              'Kuvezin, Albert and Yat-Kha'
'TSOP' (Performer sort order)                       'Kuvezin, Albert and Yat-Kha'
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'TXXX:MusicBrainz Album Id'                         '9a31bc3f-cfc5-40b6-a5a7-03175f499a81'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8c0135f0-9389-4f74-9885-4285ee3679a3/1cabb3c9-01cd-4678-be4b-29c0e7042f1b'
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========================== row from database ==========================
                                              'id'  471780
                                            'path'  /data/Music/Bulk/00localcharacter/Poets And Lighthouses/04 The Philosopher.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  257
                                           'genre'  loc-unsorted
                                        'filesize'  6183445
                                           'mtime'  1642082342
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter And 04 loc unsorted
                                      'tag_artist'  Albert Kuvezin and Yat-Kha
                                     'tag_release'  Poets and Lighthouses
                                       'tag_title'  The Philosopher
                                             'bpm'  120.471
                                    'search_title'  'philosopher':2 'the':1
                                   'search_artist'  'albert':1 'and':3 'kha':5 'kuvezin':2 'yat':4 'yatkha':6
                                  'search_release'  'and':2 'lighthouses':3 'poets':1
                                     'search_rest'  'and':1 'loc':2 'unsorted':3
                                    'search_combo'  'albert':3B 'and':5B,10C,12 'kha':7B 'kuvezin':4B 'lighthouses':11C 'loc':13 'philosopher':2A 'poets':9C 'the':1A 'unsorted':14 'yat':6B 'yatkha':8B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-3', 'q-busy-1', 'q-grit-1', 'q-play-2', 'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']
                                      'lastfmtags'  ['folk rock', 'tuvan', 'tuva', 'covers', 'folk']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642082341.9086952  (2022-01-13 14:59:01)
                             'size'  6183445