======================== unified (from filesystem) ========================
                                         'bitrate'  '262.291'
                                        'duration'  '216'
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                                      'lastfmtags'  "['bagel', 'lo fi', 'indie folk', 'americana', 'folk']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '10'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '102.127'
                                             'key'  '9B'
                                        'acoustid'  'cd37f8bb-6289-48e3-b59c-baa4337fd594'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '9'
'COMM:iTunNORM:eng'                                 (' 00000471 00000471 00003299 00004AA0 00022D72 00022A14 00007FDB 00007FDB '
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'COMM:iTunPGAP:eng'                                 '0/'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000009CC 00000000009172A4 00000000 006C152D 00000000 '
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'COMM:iTunes_CDDB_TrackNumber:eng'                  '9'
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'TBPM' (BPM (beats per minute))                     '102.127'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDOR' (Original release time)                      '2007'
'TDRC' (Recording time)                             '2007-09-25'
'TENC' (Encoded by)                                 'iTunes v7.4.2'
'TIT2' (Title/songname/content description)         'Bricks of Our Home'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Cave Singers'
'TPE2' (Band/orchestra/accompaniment)               'The Cave Singers'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Matador'
'TRCK' (Track number/Position in set)               '9/10'
'TSO2'                                              'Cave Singers, The'
'TSOP' (Performer sort order)                       'Cave Singers, The'
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'TXXX:BARCODE'                                      '744861077121'
'TXXX:CATALOGNUMBER'                                'OLE 771-2'
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'TXXX:MusicBrainz Album Id'                         'd8f53d5b-0833-443b-a2df-5a33ce2022e0'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'bc07a2b3-807a-4dda-9c19-003553f18f45'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['bagel', 'lo fi', 'indie folk', 'americana', 'folk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
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'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.48 dB'
'TXXX:replaygain_track_peak'                        '0.515362'
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========================== row from database ==========================
                                              'id'  1329344
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Invitation Songs/09 The Bricks of our Home.mp3
                                         'working'  None
                                         'bitrate'  262
                                    'duration_sec'  216
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  7222213
                                           'mtime'  1636400702
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 09 our ifs songwriter folk
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                                     'tag_release'  Invitation Songs
                                       'tag_title'  Bricks of Our Home
                                             'bpm'  102.127
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                                   'search_artist'  'cave':2 'singers':3 'the':1
                                  'search_release'  'invitation':1 'songs':2
                                     'search_rest'  '00poprockelectronic':1 'folk':7 'ifs':5 'indierock':3 'our':4 'poprock':2 'songwriter':6
                                    'search_combo'  '00poprockelectronic':10 'bricks':1A 'cave':6B 'folk':16 'home':4A 'ifs':14 'indierock':12 'invitation':8C 'of':2A 'our':3A,13 'poprock':11 'singers':7B 'songs':9C 'songwriter':15 'the':5B
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['bagel', 'lo fi', 'indie folk', 'americana', 'folk']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636400701.9595802  (2021-11-08 20:45:01)
                             'size'  7222213