======================== unified (from filesystem) ========================
                                         'bitrate'  '242.425'
                                        'duration'  '399'
                                          'artist'  'Boards of Canada'
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                                         'release'  'Music Has the Right to Children'
                                           'title'  'Rue the Whirl'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
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                                      'lastfmtags'  "['electronica', 'idm', 'electronic', 'chillout', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '18'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '92.985'
                                             'key'  '10A'
                                        'acoustid'  '7b257816-3d7a-4daa-ba90-690c9dfae855'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000001BF 000001D8 00001189'
'COMM:iTunNORM:eng'                                 (' 000001BF 000001D8 00001189 00000CBC 00052C69 00017A5F 00007BBC 00007B39 '
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'TALB' (Album/Movie/Show title)                     'Music Has the Right to Children'
'TBPM' (BPM (beats per minute))                     '92.985'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '2004-04-06'
'TENC' (Encoded by)                                 'FairStars Audio Converter'
'TIT2' (Title/songname/content description)         'Rue the Whirl'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Boards of Canada'
'TPE2' (Band/orchestra/accompaniment)               'Boards of Canada'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Warp'
'TRCK' (Track number/Position in set)               '11/18'
'TSO2'                                              'Boards of Canada'
'TSOP' (Performer sort order)                       'Boards of Canada'
'TSRC' (ISRC (international standard recording code))  'GBBPW9800020'
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'TXXX:BARCODE'                                      '801061805524'
'TXXX:CATALOGNUMBER'                                'WARPCD55X'
'TXXX:MusicBrainz Album Artist Id'                  '69158f97-4c07-4c4e-baf8-4e4ab1ed666e'
'TXXX:MusicBrainz Album Id'                         'd4d64445-c1e0-32e6-82c6-01d98d70ae9e'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '69158f97-4c07-4c4e-baf8-4e4ab1ed666e'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['electronica', 'idm', 'electronic', 'chillout', 'ambient']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.59 dB'
'TXXX:replaygain_track_peak'                        '0.640118'
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========================== row from database ==========================
                                              'id'  1328606
                                            'path'  /data/Music/Bulk/00poprockelectronic/Boards of Canada/[1998] Music Has The Right To Children/11 Rue The Whirl.mp3
                                         'working'  None
                                         'bitrate'  242
                                    'duration_sec'  399
                                           'genre'  electronic-ambient
                                        'filesize'  12129823
                                           'mtime'  1636911067
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [1998] The To 11 The electronic ambient
                                      'tag_artist'  Boards of Canada
                                     'tag_release'  Music Has the Right to Children
                                       'tag_title'  Rue the Whirl
                                             'bpm'  92.985
                                    'search_title'  'rue':1 'the':2 'whirl':3
                                   'search_artist'  'boards':1 'canada':3 'of':2
                                  'search_release'  'children':6 'has':2 'music':1 'right':4 'the':3 'to':5
                                     'search_rest'  '00poprockelectronic':1 '1998':2,3 'ambient':7 'electronic':6 'the':4 'to':5
                                    'search_combo'  '00poprockelectronic':13 '1998':14,15 'ambient':19 'boards':4B 'canada':6B 'children':12C 'electronic':18 'has':8C 'music':7C 'of':5B 'right':10C 'rue':1A 'the':2A,9C,16 'to':11C,17 'whirl':3A
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['electronica', 'idm', 'electronic', 'chillout', 'ambient']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636911067.3147414  (2021-11-14 18:31:07)
                             'size'  12129823