======================== unified (from filesystem) ========================
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                                        'duration'  '268'
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                                      'lastfmtags'  "['psychedelic rock', 'rock', 'hard rock', 'progressive rock', 'stoner rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '10'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '132'
                                             'key'  '5A'
                                        'acoustid'  'a0fe8e52-fccd-44af-87e8-a95b848f922f'
rest: ''

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

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'COMM:iTunes_CDDB_IDs:eng'                          '10+5155F3068B47BE34698B916EF226D3EE+11482085'
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'TBPM' (BPM (beats per minute))                     '132'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008-08-12'
'TENC' (Encoded by)                                 'iTunes v7.6.2'
'TIT2' (Title/songname/content description)         'Race With Time'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bigelf'
'TPE2' (Band/orchestra/accompaniment)               'Bigelf'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Custard'
'TRCK' (Track number/Position in set)               '8/10'
'TSO2'                                              'Bigelf'
'TSOP' (Performer sort order)                       'Bigelf'
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'TXXX:Acoustid Id'                                  'a0fe8e52-fccd-44af-87e8-a95b848f922f'
'TXXX:Artists'                                      'Bigelf'
'TXXX:BARCODE'                                      '182496000419'
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'TXXX:MusicBrainz Album Id'                         '04e23cb9-13f8-409e-8f8b-b84ab780bf44'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['psychedelic rock', 'rock', 'hard rock', 'progressive rock', 'stoner rock']
'TXXX:originalyear'                                 '2008'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.04 dB'
'TXXX:replaygain_track_peak'                        '0.383137'
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========================== row from database ==========================
                                              'id'  1380970
                                            'path'  /data/Music/Bulk/00dwimp/Bigelf - 2008 Cheat The Gallows/08 Race With Time.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  268
                                           'genre'  rock-cppex-progressive
                                        'filesize'  10810368
                                           'mtime'  1620735992
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 2008 The 08 rock cppex progressive
                                      'tag_artist'  Bigelf
                                     'tag_release'  Cheat the Gallows
                                       'tag_title'  Race With Time
                                             'bpm'  132.0
                                    'search_title'  'race':1 'time':3 'with':2
                                   'search_artist'  'bigelf':1
                                  'search_release'  'cheat':1 'gallows':3 'the':2
                                     'search_rest'  '00dwimp':1 '2008':2 'cppex':5 'progressive':6 'rock':4 'the':3
                                    'search_combo'  '00dwimp':8 '2008':9 'bigelf':4B 'cheat':5C 'cppex':12 'gallows':7C 'progressive':13 'race':1A 'rock':11 'the':6C,10 'time':3A 'with':2A
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic rock', 'rock', 'hard rock', 'progressive rock', 'stoner rock']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620735991.835339  (2021-05-11 14:26:31)
                             'size'  10810368