======================== unified (from filesystem) ========================
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                                        'duration'  '175'
                                          'artist'  'Khun Paw Yann'
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'album'                                             'Guitars of the Golden Triangle: Folk and Pop Music of Myanmar, Volume 2'
'albumartist'                                       'Various Artists'
'albumartistsort'                                   'Various Artists'
'artist'                                            'Khun Paw Yann'
'artistsort'                                        'Khun Paw Yann'
'asin'                                              'B000AOENIQ'
'barcode'                                           '0751937275121'
'bpm'                                               '145.790'
'catalognumber'                                     'SF024'
'compilation'                                       '1'
'date'                                              '2005-09-27'
'discnumber'                                        '1'
'disctotal'                                         '1'
'genre'                                             'loc-asia-myanmar'
'key'                                               '6B'
'label'                                             'Sublime Frequencies'
'lastfmtags'                                        ['folk rock', 'burmese', 'myanmar', 'rock']
'media'                                             'CD'
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'q-busy'                                            '3'
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'q-other'                                           '2'
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'q-play'                                            '2'
'q-syn'                                             '2'
'q-unu'                                             '2'
'q-vocals'                                          '4'
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'releasestatus'                                     'official'
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'replaygain_track_peak'                             '1.098620'
'script'                                            'Latn'
'title'                                             '[unknown]'
'tracknumber'                                       '8'
'tracktotal'                                        '21'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00localcharacter/00asia/[BURMA] GUITARS OF THE GOLDEN TRIANGLE - FOLK & POP MUSIC OF MYANMAR VOL 2 [SUBLIME FREQUENCIES] (2005)/08. Khun Paw Yann - Unknown.ogg
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                                    'duration_sec'  175
                                           'genre'  loc-asia-myanmar
                                        'filesize'  4343413
                                           'mtime'  1621629197
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                                      'tag_artist'  Khun Paw Yann
                                     'tag_release'  Guitars of the Golden Triangle: Folk and Pop Music of Myanmar, Volume 2
                                       'tag_title'  [unknown]
                                             'bpm'  145.79
                                    'search_title'  'unknown':1,2
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                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['q-mixbeat-1', 'q-chart-1', 'q-other-2', 'q-oldst-2', 'q-grit-2', 'q-hap-3', 'q-drums-1', 'q-busy-3', 'q-localness-3', 'q-jzfks-1', 'q-hhrnbtt-1', 'q-syn-2', 'q-piano-1', 'q-play-2', 'q-bass-3', 'q-vocals-4', 'q-unu-2']
                                      'lastfmtags'  ['folk rock', 'burmese', 'myanmar', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629196.951501  (2021-05-21 22:33:16)
                             'size'  4343413