======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '237'
                                          'artist'  'Slade'
                                     'text_people'  ''
                                         'release'  'The Collection 79-87'
                                           'title'  'Little Sheila'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['glam rock', '70s', 'rock', 'hard rock', 'classic rock']"
                                     'discogstags'  "['hard rock', 'glam', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '132.444'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Collection 79-87'
'TBPM' (BPM (beats per minute))                     '132.444'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1985'
'TENC' (Encoded by)                                 'Lame'
'TIT2' (Title/songname/content description)         'Little Sheila'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Slade'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hard rock', 'glam', 'rock']
'TXXX:lastfmtags'                                   ['glam rock', '70s', 'rock', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.90 dB'
'TXXX:replaygain_track_peak'                        '0.445039'

========================== row from database ==========================
                                              'id'  1290422
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/134 Slade - Little Sheila.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  237
                                           'genre'  rock-unsorted
                                        'filesize'  9542815
                                           'mtime'  1620389095
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 134 rock unsorted
                                      'tag_artist'  Slade
                                     'tag_release'  The Collection 79-87
                                       'tag_title'  Little Sheila
                                             'bpm'  132.444
                                    'search_title'  'little':1 'sheila':2
                                   'search_artist'  'slade':1
                                  'search_release'  '79':3 '7987':5 '87':4 'collection':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 '134':4 '1985':2 'complete':3 'rock':5 'unsorted':6
                                    'search_combo'  '00poprockelectronic':9 '134':12 '1985':10 '79':6C '7987':8C '87':7C 'collection':5C 'complete':11 'little':1A 'rock':13 'sheila':2A 'slade':3B 'the':4C 'unsorted':14
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['glam rock', '70s', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  ['hard rock', 'glam', 'rock']

============================== file details ==============================
                                           'mtime'  1620389094.5340457  (2021-05-07 14:04:54)
                             'size'  9542815