======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '168'
                                          'artist'  'Al Bowlly & Ray Noble'
                                     'text_people'  ''
                                         'release'  'HMV B-6485, Matrix OB-5982-2'
                                           'title'  "After All You're All I'm After (Heymann/Schwartz) 27-4-1934"
                                           '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-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', '30s', 'oldies', 'crooner', 'british']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '99.910'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'HMV B-6485, Matrix OB-5982-2'
'TBPM' (BPM (beats per minute))                     '99.910'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         "After All You're All I'm After (Heymann/Schwartz) 27-4-1934"
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '168628'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Bowlly & Ray Noble'
'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'                                   ['jazz', '30s', 'oldies', 'crooner', 'british']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.63 dB'
'TXXX:replaygain_track_peak'                        '0.512704'

========================== row from database ==========================
                                              'id'  1503680
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Al Bowlly, Ray Noble - After All You_re All I_m After 1934.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  168
                                           'genre'  prerock-vocal
                                        'filesize'  2721792
                                           'mtime'  1620666334
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular Bowlly, You_re I_m prerock vocal
                                      'tag_artist'  Al Bowlly & Ray Noble
                                     'tag_release'  HMV B-6485, Matrix OB-5982-2
                                       'tag_title'  After All You're All I'm After (Heymann/Schwartz) 27-4-1934
                                             'bpm'  99.91
                                    'search_title'  '1934':14 '27':12 '2741934':15 '4':13 'after':1 'all':2 'heymann':9 'heymannschwartz':11 'i':6 'im':8 'm':7 're':4 'schwartz':10 'you':3 'youre':5
                                   'search_artist'  'al':1 'bowlly':2 'noble':4 'ray':3
                                  'search_release'  '2':8 '5982':7 '6485':3 'b':2 'b6485':4 'hmv':1 'matrix':5 'ob':6 'ob59822':9
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 'and':7 'bowlly':10,11 'country':4 'exotica':2 'i':14 'jazz':1 'm':15 'oldies':3 'popular':9 'prerock':16 're':13 'vocal':17 'you':12
                                    'search_combo'  '00oldiepop':33 '1920s':34 '1930s':36 '1934':14A '2':27C '27':12A '2741934':15A '4':13A '5982':26C '6485':22C 'after':1A 'al':16B 'all':2A 'and':35 'b':21C 'b6485':23C 'bowlly':17B,38,39 'country':32 'exotica':30 'heymann':9A 'heymannschwartz':11A 'hmv':20C 'i':6A,42 'im':8A 'jazz':29 'm':7A,43 'matrix':24C 'noble':19B 'ob':25C 'ob59822':28C 'oldies':31 'popular':37 'prerock':44 'ray':18B 're':4A,41 'schwartz':10A 'vocal':45 'you':3A,40 'youre':5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['jazz', '30s', 'oldies', 'crooner', 'british']
                                        'tag_date'  1925
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666334.0921652  (2021-05-10 19:05:34)
                             'size'  2721792