======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '205'
                                          'artist'  'Eric Winstone'
                                     'text_people'  ''
                                         'release'  'HMV BD-5898'
                                           'title'  'How Little We Know (vocal - Julie Dawn)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['lounge', 'cartoon library', 'entschleunigen', 'library music', 'easy "
 "listening']")
                                     'discogstags'  "['stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '115.589'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'HMV BD-5898'
'TBPM' (BPM (beats per minute))                     '115.589'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'How Little We Know (vocal - Julie Dawn)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Eric Winstone'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'stage & screen'
'TXXX:lastfmtags'                                   ['lounge',
 'cartoon library',
 'entschleunigen',
 'library music',
 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                        '+2.62 dB'
'TXXX:replaygain_track_peak'                        '0.460753'

========================== row from database ==========================
                                              'id'  1434081
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1945/Eric Winstone - How Little We Know (vocal - Julie Dawn) 8-8-1945.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  205
                                           'genre'  prerock-unsorted
                                        'filesize'  4118322
                                           'mtime'  1621698078
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1945 1945 prerock unsorted
                                      'tag_artist'  Eric Winstone
                                     'tag_release'  HMV BD-5898
                                       'tag_title'  How Little We Know (vocal - Julie Dawn)
                                             'bpm'  115.589
                                    'search_title'  'dawn':8,9 'how':1 'julie':7 'know':4 'little':2 'vocal':5,6 'we':3
                                   'search_artist'  'eric':1 'winstone':2
                                  'search_release'  '5898':3 'bd':2 'bd5898':4 'hmv':1
                                     'search_rest'  '00oldiepop':5 '1945':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':20 '1945':21 '5898':14C 'bd':13C 'bd5898':15C 'country':19 'dawn':8A,9A 'eric':10B 'exotica':17 'hmv':12C 'how':1A 'jazz':16 'julie':7A 'know':4A 'little':2A 'oldies':18 'prerock':22 'unsorted':23 'vocal':5A,6A 'we':3A 'winstone':11B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'cartoon library', 'entschleunigen', 'library music', 'easy listening']
                                        'tag_date'  1945
                                     'discogstags'  ['stage & screen']

============================== file details ==============================
                                           'mtime'  1621698077.613281  (2021-05-22 17:41:17)
                             'size'  4118322