======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '121'
                                          'artist'  '36'
                                     'text_people'  ''
                                         'release'  'Hypersona'
                                           'title'  'Dream Window'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['instrumental', 'melancholic', 'dreamy', 'downtempo', 'ambient']"
                                     'discogstags'  "['free jazz', 'jazz', 'noise', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '12'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '142.708'
                                             'key'  '3A'
                                        'acoustid'  'f653da75-f534-4482-9e3c-c87748ba87b7'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Hypersona'
'TBPM' (BPM (beats per minute))                     '142.708'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Dream Window'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '36'
'TPE2' (Band/orchestra/accompaniment)               '36'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  '3six Recordings'
'TRCK' (Track number/Position in set)               '10/12'
'TSO2'                                              '36'
'TSOP' (Performer sort order)                       '36'
'TXXX:Acoustid Id'                                  'f653da75-f534-4482-9e3c-c87748ba87b7'
'TXXX:BARCODE'                                      '643157402985'
'TXXX:CATALOGNUMBER'                                '3SIXCD001'
'TXXX:MusicBrainz Album Artist Id'                  'd884c0ab-e11f-4d87-95d7-54da9d725c5f'
'TXXX:MusicBrainz Album Id'                         '02912eea-d4bc-470a-abb2-e1a353144682'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd884c0ab-e11f-4d87-95d7-54da9d725c5f'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['free jazz', 'jazz', 'noise', 'electronic', 'experimental']
'TXXX:lastfmtags'                                   ['instrumental', 'melancholic', 'dreamy', 'downtempo', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.06 dB'
'TXXX:replaygain_track_peak'                        '0.365235'

========================== row from database ==========================
                                              'id'  127554
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Unsorted/36-Dream-Window.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  121
                                           'genre'  electronic
                                        'filesize'  2910110
                                           'mtime'  1636912812
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Unsorted electronic
                                      'tag_artist'  36
                                     'tag_release'  Hypersona
                                       'tag_title'  Dream Window
                                             'bpm'  142.708
                                    'search_title'  'dream':1 'window':2
                                   'search_artist'  '36':1
                                  'search_release'  'hypersona':1
                                     'search_rest'  'electronic':2 'unsorted':1
                                    'search_combo'  '36':3B 'dream':1A 'electronic':6 'hypersona':4C 'unsorted':5 'window':2A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'melancholic', 'dreamy', 'downtempo', 'ambient']
                                        'tag_date'  2009
                                     'discogstags'  ['free jazz', 'jazz', 'noise', 'electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636912811.7299476  (2021-11-14 19:00:11)
                             'size'  2910110