======================== unified (from filesystem) ========================
                                         'bitrate'  '208.412'
                                        'duration'  '420'
                                          'artist'  'Fela Kuti'
                                     'text_people'  ''
                                         'release'  "The '69 Los Angeles Sessions"
                                           'title'  'My Lady Frustration'
                                           '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dommages collateraux', 'maria farantouri']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '127.6'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '1'
'COMM:iTunNORM:eng'                                 (' 000005D0 00000459 0000149D 00001855 0000E8A1 0002139A 00004D5B 00004237 '
 '00012B27 000437BB')
'TALB' (Album/Movie/Show title)                     "The '69 Los Angeles Sessions"
'TBPM' (BPM (beats per minute))                     '127.6'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDRC' (Recording time)                             '1993'
'TENC' (Encoded by)                                 'SoundJam v2.5.3'
'TIT2' (Title/songname/content description)         'My Lady Frustration'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Fela Kuti'
'TRCK' (Track number/Position in set)               '01'
'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:lastfmtags'                                   ['dommages collateraux', 'maria farantouri']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.32 dB'
'TXXX:replaygain_track_peak'                        '0.622920'

========================== row from database ==========================
                                              'id'  1529074
                                            'path'  /data/Music/Bulk/00localcharacter/Fela Kuti/The _69 Los Angeles Sessions/01 - my lady frustration.mp3
                                         'working'  None
                                         'bitrate'  208
                                    'duration_sec'  420
                                           'genre'  loc-africa-nigeria
                                        'filesize'  10984224
                                           'mtime'  1621629693
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter _69 01 my lady frustration loc africa nigeria
                                      'tag_artist'  Fela Kuti
                                     'tag_release'  The '69 Los Angeles Sessions
                                       'tag_title'  My Lady Frustration
                                             'bpm'  127.6
                                    'search_title'  'frustration':3 'lady':2 'my':1
                                   'search_artist'  'fela':1 'kuti':2
                                  'search_release'  '69':2,3 'angeles':5 'los':4 'sessions':6 'the':1
                                     'search_rest'  '69':1 'africa':6 'frustration':4 'lady':3 'loc':5 'my':2 'nigeria':7
                                    'search_combo'  '69':7C,8C,12 'africa':17 'angeles':10C 'fela':4B 'frustration':3A,15 'kuti':5B 'lady':2A,14 'loc':16 'los':9C 'my':1A,13 'nigeria':18 'sessions':11C 'the':6C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', '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'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629693.4655643  (2021-05-21 22:41:33)
                             'size'  10984224