======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '298'
                                          'artist'  'Animals as Leaders'
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                                           'title'  'Private Visions of the World'
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                                      'lastfmtags'  "['instrumental', 'math metal', 'djent', 'progressive metal', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '10'
                                            'date'  '2016'
                                        'comments'  ''
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rest: ''

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

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'COMM::eng'                                         'EAC SM T&C AccurateRip FLAC -8'
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'TBPM' (BPM (beats per minute))                     '91.0'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-progressive'
'TDOR' (Original release time)                      '2016'
'TDRC' (Recording time)                             '2016-11-11'
'TIT2' (Title/songname/content description)         'Private Visions of the World'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Animals as Leaders'
'TPE2' (Band/orchestra/accompaniment)               'Animals as Leaders'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sumerian Records'
'TRCK' (Track number/Position in set)               '5/10'
'TSO2'                                              'Animals as Leaders'
'TSOP' (Performer sort order)                       'Animals as Leaders'
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'TXXX:CATALOGNUMBER'                                'SUM747'
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'TXXX:MusicBrainz Album Id'                         '51c65da7-b16c-42a0-8959-a16f2cfac105'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5c2d2520-950b-4c78-84fc-78a9328172a3'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
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'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental', 'math metal', 'djent', 'progressive metal', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.50 dB'
'TXXX:replaygain_track_peak'                        '0.449192'
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========================== row from database ==========================
                                              'id'  1397788
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Animals as Leaders - The Madness of Many (2016) 320/05 Private Visions of the World.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  298
                                           'genre'  eid-metal-progressive
                                        'filesize'  12141631
                                           'mtime'  1620310861
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal (2016) 320 05 eid metal progressive
                                      'tag_artist'  Animals as Leaders
                                     'tag_release'  The Madness of Many
                                       'tag_title'  Private Visions of the World
                                             'bpm'  91.0
                                    'search_title'  'of':3 'private':1 'the':4 'visions':2 'world':5
                                   'search_artist'  'animals':1 'as':2 'leaders':3
                                  'search_release'  'madness':2 'many':4 'of':3 'the':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2016':3,4 '320':5 'eid':6 'metal':7 'progressive':8
                                    'search_combo'  '00dwimp':13 '00metal':14 '2016':15,16 '320':17 'animals':6B 'as':7B 'eid':18 'leaders':8B 'madness':10C 'many':12C 'metal':19 'of':3A,11C 'private':1A 'progressive':20 'the':4A,9C 'visions':2A 'world':5A
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['instrumental', 'math metal', 'djent', 'progressive metal', 'experimental']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620310861.0530639  (2021-05-06 16:21:01)
                             'size'  12141631