======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '1020'
                                          'artist'  'Fela Kuti'
                                     'text_people'  ''
                                         'release'  'The Anthology'
                                           'title'  'Alagbon Close'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-JZFKS-3', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dommages collateraux', 'maria farantouri']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '6'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '118.014'
                                             'key'  '4A'
                                        'acoustid'  '35901963-934d-45c5-9b26-49b1e5d36b91'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '118.014'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'iTunes 9.0.3.15'
'TIT2' (Title/songname/content description)         'Alagbon Close'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fela Kuti'
'TPE2' (Band/orchestra/accompaniment)               'Fela Kuti'
'TPOS' (Part of a set)                              '1/3'
'TRCK' (Track number/Position in set)               '4/6'
'TSO2'                                              'Kuti, Fela'
'TSOP' (Performer sort order)                       'Kuti, Fela'
'TXXX:ASIN'                                         'B000038I2M'
'TXXX:Acoustid Id'                                  '35901963-934d-45c5-9b26-49b1e5d36b91'
'TXXX:MusicBrainz Album Artist Id'                  '6514cffa-fbe0-4965-ad88-e998ead8a82a'
'TXXX:MusicBrainz Album Id'                         'c02eec85-d309-4960-ab21-3b661411fbd0'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '6514cffa-fbe0-4965-ad88-e998ead8a82a'
'TXXX:MusicBrainz Release Group Id'                 '88e6f7e6-684b-3f43-9606-c5b046810f07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['dommages collateraux', 'maria farantouri']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.39 dB'
'TXXX:replaygain_track_peak'                        '0.427928'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'38e950cd-1817-443a-ae94-899dfd1511ed')

========================== row from database ==========================
                                              'id'  926994
                                            'path'  /data/Music/Bulk/00localcharacter/00africa/Anthology/04 Alagbon Close.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  1020
                                           'genre'  loc-africa-nigeria
                                        'filesize'  24546417
                                           'mtime'  1621629078
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00africa 04 loc africa nigeria
                                      'tag_artist'  Fela Kuti
                                     'tag_release'  The Anthology
                                       'tag_title'  Alagbon Close
                                             'bpm'  118.014
                                    'search_title'  'alagbon':1 'close':2
                                   'search_artist'  'fela':1 'kuti':2
                                  'search_release'  'anthology':2 'the':1
                                     'search_rest'  '00africa':1 'africa':3 'loc':2 'nigeria':4
                                    'search_combo'  '00africa':7 'africa':9 'alagbon':1A 'anthology':6C 'close':2A 'fela':3B 'kuti':4B 'loc':8 'nigeria':10 'the':5C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dommages collateraux', 'maria farantouri']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629077.9938328  (2021-05-21 22:31:17)
                             'size'  24546417