======================== unified (from filesystem) ========================
                                         'bitrate'  '190.551'
                                        'duration'  '234'
                                          'artist'  'Queen + Robbie Williams'
                                     'text_people'  ''
                                         'release'  "A Knight's Tale"
                                           'title'  'We are the Champions'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '122.289'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "A Knight's Tale"
'TBPM' (BPM (beats per minute))                     '122.289'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'We are the Champions'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Queen + Robbie Williams'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.465346'

========================== row from database ==========================
                                              'id'  1411761
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Queen/We Are The Champions.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  234
                                           'genre'  rock-cppex-classic
                                        'filesize'  5587552
                                           'mtime'  1636038820
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Are The rock cppex classic
                                      'tag_artist'  Queen + Robbie Williams
                                     'tag_release'  A Knight's Tale
                                       'tag_title'  We are the Champions
                                             'bpm'  122.289
                                    'search_title'  'are':2 'champions':4 'the':3 'we':1
                                   'search_artist'  'queen':1 'robbie':2 'williams':3
                                  'search_release'  'a':1 'knight':2 'knights':4 's':3 'tale':5
                                     'search_rest'  'are':2 'classic':6 'classicprogpsy':1 'cppex':5 'rock':4 'the':3
                                    'search_combo'  'a':8C 'are':2A,14 'champions':4A 'classic':18 'classicprogpsy':13 'cppex':17 'knight':9C 'knights':11C 'queen':5B 'robbie':6B 'rock':16 's':10C 'tale':12C 'the':3A,15 'we':1A 'williams':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038819.8249145  (2021-11-04 16:13:39)
                             'size'  5587552