======================== unified (from filesystem) ========================
                                         'bitrate'  '249.674'
                                        'duration'  '887'
                                          'artist'  'Nana Love'
                                     'text_people'  ''
                                         'release'  'Lagos Disco Inferno'
                                           'title'  'Hang On'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['funk', 'soul', 'music', 'disco', 'afrobeat']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '121.9'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Lagos Disco Inferno'
'TBPM' (BPM (beats per minute))                     '121.9'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Hang On'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nana Love'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Academy LPs'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['funk', 'soul', 'music', 'disco', 'afrobeat']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.19 dB'
'TXXX:replaygain_track_peak'                        '0.499061'

========================== row from database ==========================
                                              'id'  771792
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Lagos Disco Inferno/12 Hang On.mp3
                                         'working'  None
                                         'bitrate'  249
                                    'duration_sec'  887
                                           'genre'  loc-africa-nigeria
                                        'filesize'  29126637
                                           'mtime'  1621628815
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 12 loc africa nigeria
                                      'tag_artist'  Nana Love
                                     'tag_release'  Lagos Disco Inferno
                                       'tag_title'  Hang On
                                             'bpm'  121.9
                                    'search_title'  'hang':1 'on':2
                                   'search_artist'  'love':2 'nana':1
                                  'search_release'  'disco':2 'inferno':3 'lagos':1
                                     'search_rest'  'africa':2 'loc':1 'nigeria':3
                                    'search_combo'  'africa':9 'disco':6C 'hang':1A 'inferno':7C 'lagos':5C 'loc':8 'love':4B 'nana':3B 'nigeria':10 'on':2A
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk', 'soul', 'music', 'disco', 'afrobeat']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628815.397129  (2021-05-21 22:26:55)
                             'size'  29126637