======================== unified (from filesystem) ========================
                                         'bitrate'  '217.6'
                                        'duration'  '487'
                                          'artist'  'I Roy'
                                     'text_people'  'Niney the Observer'
                                         'release'  'Microphone Attack 1974-78'
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                             'musicbrainz_trackid'  'd261a70b-287b-4958-9d79-4e81c8365b49'
                                     'tracknumber'  '15'
                                      'tracktotal'  '18'
                                            'date'  '2001'
                                        'comments'  ''
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                                             'key'  '8A'
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======================== rawer (from filesystem) ========================

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'albumartist'                                       'Niney the Observer'
'albumartistsort'                                   'Niney the Observer'
'artist'                                            'I Roy'
'artists'                                           'I Roy'
'artistsort'                                        'I-Roy'
'asin'                                              'B00005NNH9'
'barcode'                                           '783564003723'
'bpm'                                               '132.7'
'catalognumber'                                     'BAFCD 037'
'date'                                              '2001'
'discnumber'                                        '1'
'disctotal'                                         '1'
'genre'                                             'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'key'                                               '8A'
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'musicbrainz_releasetrackid'                        'e2c287c1-fa15-378a-9adc-188979645bf7'
'musicbrainz_trackid'                               'd261a70b-287b-4958-9d79-4e81c8365b49'
'originaldate'                                      '2001'
'originalyear'                                      '2001'
'producer'                                          'Niney the Observer'
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'q-busy'                                            '2'
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'q-drums'                                           '4'
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'q-jzfks'                                           '3'
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'q-mixbeat'                                         '2'
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'q-piano'                                           '1'
'q-play'                                            '3'
'q-syn'                                             '2'
'q-unu'                                             '1'
'q-vocals'                                          '3'
'releasecountry'                                    'GB'
'releasetype'                                       ['album', 'compilation']
'replaygain_track_gain'                             '-8.88 dB'
'replaygain_track_peak'                             '1.116314'
'script'                                            'Latn'
'title'                                             'Roots Man (Observer mix version)'
'tracknumber'                                       '15'
'tracktotal'                                        '18'

========================== row from database ==========================
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                                         'working'  None
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                                    'duration_sec'  487
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  9916057
                                           'mtime'  1636914412
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                                     'tag_release'  Microphone Attack 1974-78
                                       'tag_title'  Roots Man (Observer mix version)
                                             'bpm'  132.7
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                                   'search_artist'  'i':1 'roy':2
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                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['q-mixbeat-2', 'q-chart-2', 'q-other-1', 'q-oldst-2', 'q-grit-2', 'q-hap-3', 'q-drums-4', 'q-busy-2', 'q-localness-3', 'q-jzfks-3', 'q-hhrnbtt-1', 'q-syn-2', 'q-piano-1', 'q-play-3', 'q-bass-4', 'q-vocals-3', 'q-unu-1']
                                      'lastfmtags'  []
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636914412.4263983  (2021-11-14 19:26:52)
                             'size'  9916057