======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '150'
                                          'artist'  'Ray Charles Singers'
                                     'text_people'  ''
                                         'release'  'MGM 12068'
                                           'title'  'Autumn Leaves'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'all', 'oldies', '70s muzak', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '199'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '128.008'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'MGM 12068'
'TBPM' (BPM (beats per minute))                     '128.008'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'Autumn Leaves'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ray Charles Singers'
'TRCK' (Track number/Position in set)               '199'
'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:lastfmtags'                                   ['lounge', 'all', 'oldies', '70s muzak', 'easy listening']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.50 dB'
'TXXX:replaygain_track_peak'                        '0.322240'

========================== row from database ==========================
                                              'id'  1445235
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1955/1955-199 - Ray Charles Singers - Autumn Leaves.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  150
                                           'genre'  prerock-unsorted
                                        'filesize'  6017484
                                           'mtime'  1621698214
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1955 1955 199 prerock unsorted
                                      'tag_artist'  Ray Charles Singers
                                     'tag_release'  MGM 12068
                                       'tag_title'  Autumn Leaves
                                             'bpm'  128.008
                                    'search_title'  'autumn':1 'leaves':2
                                   'search_artist'  'charles':2 'ray':1 'singers':3
                                  'search_release'  '12068':2 'mgm':1
                                     'search_rest'  '00oldiepop':5 '1955':6 '199':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':12 '12068':7C '1955':13 '199':14 'autumn':1A 'charles':4B 'country':11 'exotica':9 'jazz':8 'leaves':2A 'mgm':6C 'oldies':10 'prerock':15 'ray':3B 'singers':5B 'unsorted':16
                                    'tag_tracknum'  199
                                      'num_images'  0
                                             'key'  10A
                                           '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-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'all', 'oldies', '70s muzak', 'easy listening']
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698213.5492678  (2021-05-22 17:43:33)
                             'size'  6017484