======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '161'
                                          'artist'  'Four Vagabonds'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '026 Rose Ann of Charing Cross - Four Vagabonds (10-04-1943)'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'rhythm and blues', 'random', 'rnb', 'ww ii']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '26'
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '125.860'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.860'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         '026 Rose Ann of Charing Cross - Four Vagabonds (10-04-1943)'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Four Vagabonds'
'TRCK' (Track number/Position in set)               '26'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'rhythm and blues', 'random', 'rnb', 'ww ii']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.40 dB'
'TXXX:replaygain_track_peak'                        '0.305622'

========================== row from database ==========================
                                              'id'  1455701
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/026 Rose Ann of Charing Cross - Four Vagabonds (10-04-1943).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  161
                                           'genre'  prerock-unsorted
                                        'filesize'  2593460
                                           'mtime'  1620386934
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock unsorted
                                      'tag_artist'  Four Vagabonds
                                     'tag_release'  None
                                       'tag_title'  026 Rose Ann of Charing Cross - Four Vagabonds (10-04-1943)
                                             'bpm'  125.86
                                    'search_title'  '04':9 '10':8 '10041943':11 '1943':10 'ann':2 'charing':4 'cross':5 'four':6 'of':3 'rose':1 'vagabonds':7
                                   'search_artist'  'four':1 'vagabonds':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'unsorted':7
                                    'search_combo'  '00oldiepop':18 '04':9A '10':8A '10041943':11A '1943':10A 'ann':2A 'charing':4A 'country':17 'cross':5A 'exotica':15 'four':6A,12B 'jazz':14 'of':3A 'oldies':16 'prerock':19 'rose':1A 'unsorted':20 'vagabonds':7A,13B
                                    'tag_tracknum'  26
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'rhythm and blues', 'random', 'rnb', 'ww ii']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620386934.2401788  (2021-05-07 13:28:54)
                             'size'  2593460