======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '128'
                                          'artist'  'Arthur Collins'
                                     'text_people'  ''
                                         'release'  'Edison  8637'
                                           'title'  "Hannah Won't You Open That Door 1904 Edison"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-1', 'q-chart-1', 'q-drums-1', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['minstrel', 'all', 'real oldies', 'ragtime', '1900s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1904'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '85.4'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Edison  8637'
'TBPM' (BPM (beats per minute))                     '85.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1904'
'TIT2' (Title/songname/content description)         "Hannah Won't You Open That Door 1904 Edison"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Arthur Collins'
'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'                                   ['minstrel', 'all', 'real oldies', 'ragtime', '1900s']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                        '+2.36 dB'
'TXXX:replaygain_track_peak'                        '0.769418'

========================== row from database ==========================
                                              'id'  1501467
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1904/Arthur Collins - Hannah Won_t You Open That Door 1904 Edison.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  128
                                           'genre'  prerock-vocal
                                        'filesize'  2612818
                                           'mtime'  1630255229
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop Won_t prerock vocal
                                      'tag_artist'  Arthur Collins
                                     'tag_release'  Edison  8637
                                       'tag_title'  Hannah Won't You Open That Door 1904 Edison
                                             'bpm'  85.4
                                    'search_title'  '1904':9 'door':8 'edison':10 'hannah':1 'open':6 't':3 'that':7 'won':2 'wont':4 'you':5
                                   'search_artist'  'arthur':1 'collins':2
                                  'search_release'  '8637':2 'edison':1
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 't':7 'vocal':9 'won':6
                                    'search_combo'  '00oldiepop':19 '1904':9A '8637':14C 'arthur':11B 'collins':12B 'country':18 'door':8A 'edison':10A,13C 'exotica':16 'hannah':1A 'jazz':15 'oldies':17 'open':6A 'prerock':22 't':3A,21 'that':7A 'vocal':23 'won':2A,20 'wont':4A 'you':5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['minstrel', 'all', 'real oldies', 'ragtime', '1900s']
                                        'tag_date'  1904
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630255228.5944705  (2021-08-29 18:40:28)
                             'size'  2612818