======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '188'
                                          'artist'  'Mistinguett'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Tout Ca N' Arrive Qu' A Moi"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', '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'  "['20s', 'chanson', 'female vocalists', '1920s', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-french'
                                             'bpm'  '90.8'
                                             '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'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TBPM' (BPM (beats per minute))                     '90.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-french'
'TDRC' (Recording time)                             '1933'
'TIT2' (Title/songname/content description)         "Tout Ca N' Arrive Qu' A Moi"
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '188000'
'TPE1' (Lead performer(s)/Soloist(s))               'Mistinguett'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['20s', 'chanson', 'female vocalists', '1920s', 'french']
'TXXX:q-bass'                                       '1'
'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'                        '+1.69 dB'
'TXXX:replaygain_track_peak'                        '0.543720'

========================== row from database ==========================
                                              'id'  1506804
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Mistinguett - Tout Ca N_ Arrive Qu_ A Moi 1933.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  188
                                           'genre'  prerock-french
                                        'filesize'  3799103
                                           'mtime'  1621627180
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 N_ Qu_ 1933 prerock french
                                      'tag_artist'  Mistinguett
                                     'tag_release'  None
                                       'tag_title'  Tout Ca N' Arrive Qu' A Moi
                                             'bpm'  90.8
                                    'search_title'  'a':8 'arrive':5 'ca':2 'moi':9 'n':3,4 'qu':6,7 'tout':1
                                   'search_artist'  'mistinguett':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1933':6 'country':4 'exotica':2 'french':10 'jazz':1 'n':7 'oldies':3 'prerock':9 'qu':8
                                    'search_combo'  '00oldiepop':15 '1933':16 'a':8A 'arrive':5A 'ca':2A 'country':14 'exotica':12 'french':20 'jazz':11 'mistinguett':10B 'moi':9A 'n':3A,4A,17 'oldies':13 'prerock':19 'qu':6A,7A,18 'tout':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', '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-1', 'q-grit-1']
                                      'lastfmtags'  ['20s', 'chanson', 'female vocalists', '1920s', 'french']
                                        'tag_date'  1933
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627180.2682862  (2021-05-21 21:59:40)
                             'size'  3799103