<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '820'
                                          'artist'  'Fela Kuti'
                                     'text_people'  ''
                                         'release'  'The Best of Fela Kuti: The Black President'
                                           'title'  'I T T, Part 2'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-JZFKS-3', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', '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'  '2005'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '84.2'
                                             'key'  '9B'
                                        'acoustid'  '0159c0ce-5516-46d0-8be4-0e9461a51214'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f1b50>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1476658"/>
'COMM:iTunNORM:eng'                                 (' 00000CE4 00000F7F 00008F0B 0000C0E3 000C0331 000C0331 00008000 00008000 '
 '0000A372 0000DFDA')
'TALB' (Album/Movie/Show title)                     'The Best of Fela Kuti: The Black President'
'TBPM' (BPM (beats per minute))                     '84.2'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2005-07-26'
'TIT2' (Title/songname/content description)         'I T T, Part 2'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Fela Kuti'
'TPE2' (Band/orchestra/accompaniment)               'Fela Kuti'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '4/6'
'TSO2'                                              'Kuti, Fela'
'TSOP' (Performer sort order)                       'Kuti, Fela'
'TXXX:Acoustid Id'                                  '0159c0ce-5516-46d0-8be4-0e9461a51214'
'TXXX:MusicBrainz Album Artist Id'                  '6514cffa-fbe0-4965-ad88-e998ead8a82a'
'TXXX:MusicBrainz Album Id'                         '2869a0a4-3751-458c-ab6b-d00028d68e4d'
'TXXX:MusicBrainz Album Release Country'            'FR'
'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'                 'afeb4c5f-637b-3d5a-8c37-e55a8bfb5dc1'
'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'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.68 dB'
'TXXX:replaygain_track_peak'                        '0.531888'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'3ccf388e-a802-4cb3-beea-afc8bdb1578e')

========================== row from database ==========================
                                              'id'  1476658
                                            'path'  /data/Music/Bulk/00localcharacter/00africa/Fela Kuti/2000 - The Best Of The Black President (2CD)/0204 - I T T, Pt. 2.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  820
                                           'genre'  loc-africa-nigeria
                                        'filesize'  13227313
                                           'mtime'  1621629084
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00africa 2000 Of (2CD) 0204 Pt. loc africa nigeria
                                      'tag_artist'  Fela Kuti
                                     'tag_release'  The Best of Fela Kuti: The Black President
                                       'tag_title'  I T T, Part 2
                                             'bpm'  84.2
                                    'search_title'  '2':5 'i':1 'part':4 't':2,3
                                   'search_artist'  'fela':1 'kuti':2
                                  'search_release'  'best':2 'black':7 'fela':4 'kuti':5,6 'of':3 'president':8 'the':1
                                     'search_rest'  '00africa':1 '0204':6 '2000':2 '2cd':4,5 'africa':10 'loc':9 'nigeria':11 'of':3 'pt':7,8
                                    'search_combo'  '00africa':16 '0204':21 '2':5A '2000':17 '2cd':19,20 'africa':25 'best':9C 'black':14C 'fela':6B,11C 'i':1A 'kuti':7B,12C,13C 'loc':24 'nigeria':26 'of':10C,18 'part':4A 'president':15C 'pt':22,23 't':2A,3A 'the':8C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  9B
                                           '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dommages collateraux', 'maria farantouri']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629083.540391  (2021-05-21 22:31:23)
                             'size'  13227313