======================== unified (from filesystem) ========================
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                                        'duration'  '245'
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                                      'lastfmtags'  "['indie', 'alternative', '2009', 'british', 'indie rock']"
                             'musicbrainz_albumid'  ''
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                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
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rest: ''

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

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'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'Lame 3.97'
'TIT2' (Title/songname/content description)         'How Are We'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bombay Bicycle Club'
'TRCK' (Track number/Position in set)               '32'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
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'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'alternative', '2009', 'british', 'indie rock']
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'TXXX:q-syn'                                        '2'
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========================== row from database ==========================
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                                           'genre'  ifs-songwriter-indie
                                        'filesize'  6213333
                                           'mtime'  1636400585
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                                     'tag_release'  I Had The Blues But I Shook Th
                                       'tag_title'  How Are We
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                                    'tag_tracknum'  32
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', '2009', 'british', 'indie rock']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400584.7285042  (2021-11-08 20:43:04)
                             'size'  6213333