======================== unified (from filesystem) ========================
                                         'bitrate'  '191.712'
                                        'duration'  '247'
                                          'artist'  'Kontrust'
                                     'text_people'  ''
                                         'release'  'We!come Home'
                                           'title'  'Fat Dog Symphony'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['austrian', 'austria', 'metal', 'nu metal', 'crossover']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '13'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '138.607'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'We!come Home'
'TBPM' (BPM (beats per minute))                     '138.607'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Fat Dog Symphony'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Kontrust'
'TPE2' (Band/orchestra/accompaniment)               'Kontrust'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '8/13'
'TSO2'                                              'Kontrust'
'TSOP' (Performer sort order)                       'Kontrust'
'TXXX:MusicBrainz Album Artist Id'                  '3dffd6a7-9fc6-4875-be64-f4c71e195f5c'
'TXXX:MusicBrainz Album Id'                         '4a09597b-354c-4a03-b6de-854b5d6c546c'
'TXXX:MusicBrainz Album Release Country'            'PL'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '3dffd6a7-9fc6-4875-be64-f4c71e195f5c'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['austrian', 'austria', 'metal', 'nu metal', 'crossover']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.351507'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'dfeb8c1b-4471-4cc3-b5e3-6953cef35c43')

========================== row from database ==========================
                                              'id'  1399802
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Kontrust/08- Fat Dog Symphony.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  247
                                           'genre'  eid-metal-nu
                                        'filesize'  5948658
                                           'mtime'  1620311090
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 08 eid metal nu
                                      'tag_artist'  Kontrust
                                     'tag_release'  We!come Home
                                       'tag_title'  Fat Dog Symphony
                                             'bpm'  138.607
                                    'search_title'  'dog':2 'fat':1 'symphony':3
                                   'search_artist'  'kontrust':1
                                  'search_release'  'come':2 'home':3 'we':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':3 'metal':4 'nu':5
                                    'search_combo'  '00dwimp':8 '00metal':9 'come':6C 'dog':2A 'eid':10 'fat':1A 'home':7C 'kontrust':4B 'metal':11 'nu':12 'symphony':3A 'we':5C
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['austrian', 'austria', 'metal', 'nu metal', 'crossover']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311090.0235512  (2021-05-06 16:24:50)
                             'size'  5948658